Mellivora capensishoney badger

Ge­o­graphic Range

Mel­livora capen­sis, the honey bad­ger or ratel, has an ex­pan­sive ge­o­graphic range, span­ning most of sub-Sa­ha­ran Africa as well as the Ara­bian penin­sula (in­clud­ing por­tions of Is­rael, Jor­dan, Iraq, Iran, Saudi Ara­bia, Lebanon, Kuwait, Syria, Oman, Yemen, and the United Arab Emi­rates), the In­dian penin­sula (in­clud­ing most of India as well as por­tions of Nepal and Pak­istan), and parts of the west­ern Asian na­tions of Turk­menistan, Uzbek­istan, Kaza­khstan, and Afghanistan. It is not his­tor­i­cally found in the in­cred­i­bly dry areas of the Sa­hara Desert nor is it found along the coast of the Mediter­ranean. (Begg, et al., 2008; Gupta, et al., 2012)

Habi­tat

Honey bad­gers are ter­res­trial an­i­mals that in­habit a wide va­ri­ety of habi­tats, in­clud­ing trop­i­cal and sub­trop­i­cal green forests, thorn forests, open wood­lands, ri­par­ian forests or grass­lands, arid steppes, rocky hills, and deserts. Honey bad­gers oc­cupy el­e­va­tions rang­ing from sea level to 4,050 me­ters. They typ­i­cally do not live in the dri­est por­tions of the Sa­hara Desert or in the chap­ar­ral bio­mes around the Mediter­ranean. They re­quire habi­tats with bur­rows, rock crevices, or other places in which they can shel­ter. (Begg, et al., 2008; Gupta, et al., 2012; Ro­se­vear, 1974; Van­der­haar and Hwang, 2003)

  • Range elevation
    0 to 4050 m
    0.00 to 13287.40 ft

Phys­i­cal De­scrip­tion

Honey bad­gers are large mustelids, with a body length of 60 to 70 cm and a mass rang­ing from 8 to 12 kg. Their size varies across their ge­o­graphic range, with mea­sure­ments taken on honey bad­gers in Africa show­ing them to be slightly larger than in­di­vid­u­als from Asian pop­u­la­tions. This species ex­hibits sex­ual di­mor­phism, with the males being larger than the fe­males. Data from in­di­vid­u­als in the Kala­hari showed adult males to be about one third larger than adult fe­males. Older adult males also have an ob­vi­ous scarred area on their back (they are re­ferred to as "scar­backs") that is prob­a­bly the re­sult of mul­ti­ple bite wounds. This species is char­ac­ter­ized by hav­ing a stocky body, about 25 cm high at the shoul­der, with a large skull, small eyes, and a mus­cu­lar neck and shoul­ders. Though the color varies slightly with sub­species (see Other Com­ments below), in gen­eral the lower (ven­tral) half of the body is a dark black, with an upper man­tle that is ei­ther grey or bright white. The lighter col­or­ing ex­tends the en­tire length of the body, stop­ping at the base of the tail. The forefeet are strong and wide, with large claws that are use­ful for grasp­ing prey and run­ning. In con­trast, the hind feet are small with short claws. Honey bad­gers have very thick, loose skin which pre­vents a preda­tor from get­ting a firm grasp on them and en­ables thm to eas­ily twist and bite the at­tacker. (Begg, et al., 2003a; Ro­se­vear, 1974; Van­der­haar and Hwang, 2003; Ver­wey, et al., 2004)

Lit­tle data are avail­able for ju­ve­nile honey bad­gers. How­ever, a re­port of a cap­tive-born honey bad­ger de­scribed it as being hair­less and weigh­ing 0.23 kg at 2 days of age. By the age of 3 months, the ju­ve­nile had a fully de­vel­oped coat with a color pat­tern like that of an adult. (Van­der­haar and Hwang, 2003)

  • Sexual Dimorphism
  • male larger
  • Range mass
    8 to 12 kg
    17.62 to 26.43 lb
  • Range length
    60 to 70 cm
    23.62 to 27.56 in

Re­pro­duc­tion

Re­pro­duc­tion in honey bad­gers is gen­er­ally not well stud­ied, ex­cept for a 42 month-long study in the Kgala­gadi Trans­fron­tier Na­tional Park in south­ern Africa. In this area, honey bad­gers mate through­out the year, though mat­ing ac­tiv­ity is slightly more com­mon dur­ing the hot dry sea­son, from Sep­tem­ber to De­cem­ber. Much of the re­cent lit­er­a­ture on the species de­scribes honey bad­gers as soli­tary an­i­mals, com­ing to­gether only briefly for mat­ing. How­ever, some older re­ports, such as the ref­er­ence to a 1910 paper by Drake-Brock­man in Van­der­haar & Hwang, 2003, in­di­cate that males and fe­males often live in pairs. The scent-mark­ing be­hav­ior of honey bad­gers ap­pears to play an im­por­tant role in find­ing a mate. There are typ­i­cally more males avail­able to mate than there are re­cep­tive fe­males, due to the long pe­riod of time the off­spring are de­pen­dent on their mother, 12 to 16 months. This means that adult male honey bad­gers are com­pet­ing with each other for ac­cess to fe­males. Male honey bad­gers that are more dom­i­nant will typ­i­cally be heav­ier and have larger testes. How­ever, this dom­i­nance does not guar­an­tee mat­ing suc­cess. In fact, a study of the ge­netic mark­ers pos­sessed by eight males and eight fe­males with over­lap­ping ranges, and the 10 off­spring of those fe­males showed that the dom­i­nant male fa­thered only half of the cubs. Since mat­ing oc­curs in a bur­row, very few ob­ser­va­tions of the process have been made. (Begg, et al., 2003b; Begg, et al., 2005a; Van­der­haar and Hwang, 2003; Ver­wey, et al., 2004)

Fe­male honey bad­gers are in es­trous for a min­i­mum of two weeks, when mat­ing oc­curs. Mat­ing is asyn­chro­nous, oc­cur­ring at any point in the year, but re­search in south­ern Africa sug­gests most breed­ing oc­curs from Sep­tem­ber to De­cem­ber. The ges­ta­tion pe­riod ranges from 50 to 70 days. Lit­ters are re­ported to con­sist of one to two off­spring, but ob­ser­va­tions made in south­ern Africa sug­gest that honey bad­gers there raise only a sin­gle young at a time. The young are born in a bur­row and re­main there until they are about 3 months old and are weaned. Con­se­quently, lit­tle in­for­ma­tion is avail­able about the size of new­borns; how­ever, one cap­tive-born cub was re­ported to weigh 0.23 kg at 2 days old. Fe­male honey bad­gers care for their young until they are one to two years old. Fe­male honey bad­gers reach sex­ual ma­tu­rity sig­nif­i­cantly faster than males, tak­ing only 12 to 16 months, where males take two to three years. (Begg, et al., 2005a; Van­der­haar and Hwang, 2003; Ver­wey, et al., 2004)

Some lit­er­a­ture sources re­port that honey bad­ger re­pro­duc­tion can in­volve de­layed im­plan­ta­tion, as oc­curs with some other mustelid species. The re­pro­duc­tive bi­ol­ogy of the species has not been well stud­ied across its ge­o­graphic range, but data col­lected in the south­ern Kala­hari does not sug­gest that de­layed im­plan­ta­tion oc­curs in that pop­u­la­tion. (Begg, et al., 2005a)

  • Breeding interval
    Honey badgers breed no more than once every 14 to 24 months.
  • Breeding season
    In southern Africa breeding occurs year-round, but is more common from September to December.
  • Range number of offspring
    1 to 2
  • Average number of offspring
    1
  • Average number of offspring
    2
    AnAge
  • Range gestation period
    50 to 70 days
  • Range weaning age
    2 to 3 months
  • Range time to independence
    12 to 22 months
  • Range age at sexual or reproductive maturity (female)
    1 to 1.3 years
  • Range age at sexual or reproductive maturity (male)
    2 to 3 years

Only fe­male honey bad­gers are in­volved in the care of off­spring, which are born blind and hair­less. For the first 3 months, honey bad­ger cubs re­main in the den, with the mother re­turn­ing to nurse. The mother will pe­ri­od­i­cally (av­er­age of every 3 days) move her cub to a new den, car­ry­ing it with her mouth. When the cub is two to three months old, the mother honey bad­ger will begin to bring prey items back to the den. Once the cub be­gins to ac­com­pany its mother to for­age, at around 3 months of age, the pair will move to a dif­fer­ent bur­row each night. The cub will re­main with its mother for 12 to 16 months, with the mother pro­vid­ing all of the food for the first 10 to 12 months. (Begg, et al., 2005b; Begg, et al., 2005a; Van­der­haar and Hwang, 2003)

Both male and fe­male honey bad­ger cubs be­come in­de­pen­dent at an av­er­age age of 14 months. How­ever, fe­males have reached their adult size at this age, and pre­sum­ably are sex­u­ally ma­ture, and they im­me­di­ately dis­perse away from their mother's home range. Males, on the other hand, con­tinue to grow after reach­ing the age of in­de­pen­dence, sug­gest­ing that they have not yet reached sex­ual ma­tu­rity. Male cubs may re­main in or near to their mother's home range for a few months after they be­come in­de­pen­dent. (Begg, et al., 2005b; Begg, et al., 2005a)

  • Parental Investment
  • altricial
  • female parental care
  • pre-fertilization
    • provisioning
    • protecting
      • female
  • pre-hatching/birth
    • provisioning
      • female
    • protecting
      • female
  • pre-weaning/fledging
    • provisioning
      • female
    • protecting
      • female
  • pre-independence
    • provisioning
      • female
    • protecting
      • female
  • post-independence association with parents

Lifes­pan/Longevity

Honey bad­gers in the wild tend to live be­tween 7 and 8 years due to pre­da­tion and risk of in­jury. In con­trast, honey bad­gers bred in cap­tiv­ity live sig­nif­i­cantly longer, with a max­i­mum lifes­pan of 26 years. (Begg, et al., 2005a; Begg, et al., 2008; Ro­se­vear, 1974)

  • Typical lifespan
    Status: wild
    7 to 8 years
  • Typical lifespan
    Status: captivity
    24 to 26 years

Be­hav­ior

Honey bad­gers are soli­tary and no­madic. They oc­cupy a large range, mov­ing around daily to for­age. Fe­male honey bad­gers tend to travel shorter dis­tances per day, around 10 km, while males may for­age for as much as 27 km per day. Males have been known to meet up with other adult-sized honey bad­gers after for­ag­ing and ex­change grunts while sniff­ing each other and rolling around in the sand. Honey bad­gers have been known to defe­cate in holes and mark with their urine or anal scent glands to in­di­cate to other an­i­mals that their bur­row is nearby. Honey bad­gers are no­to­ri­ously ag­gres­sive an­i­mals. Males in par­tic­u­lar de­fend mates with in­cred­i­ble fe­roc­ity if threat­ened. Male in­ter­ac­tions be­come ag­gres­sive if one of the males at­tempts to in­trude into the marked bur­rows, they begin a dom­i­nance dance to de­ter­mine who will stay. (Ro­se­vear, 1974; Van­der­haar and Hwang, 2003)

Home Range

In the south­ern Kala­hari re­gion, adult male honey bad­gers have an av­er­age home range of 541 sq km, while adult fe­males have a smaller av­er­age home range of 126 sq km. Young males (in­de­pen­dent but not yet sex­u­ally ma­ture) have home ranges av­er­ag­ing 151 sq km. These home ranges are not ex­clu­sive, but in­stead over­lap ex­ten­sively. Adult males may have over­lap­ping home ranges, as do adult fe­males. The home range of a dom­i­nant adult male may over­lap the ranges of as many as 13 fe­males. Young males may have home ranges that over­lap en­tirely with the home range of an adult male. De­spite the over­lap­ping home ranges of young males, adult males, and adult fe­males, they don't ex­hibit ter­ri­to­ri­al­ity. (Begg, et al., 2005b)

Com­mu­ni­ca­tion and Per­cep­tion

Honey bad­gers com­mu­ni­cate mainly through vo­cal­iza­tions. Adults emit loud grat­ing noises, com­pa­ra­ble to a high-pitched bark. Young squeal and whine when in dis­tress to gather the at­ten­tion of a par­ent. When faced with com­pet­ing males, a male honey bad­ger will begin a rit­u­al­ized dance con­sist­ing of var­i­ous whole-body ro­ta­tions. The dom­i­nant male will be the one mov­ing the most while the sub­or­di­nate is mostly im­mo­bile. Honey bad­gers mark their ter­ri­tory with urine or scent glands lo­cated in the anus. (Van­der­haar and Hwang, 2003)

Food Habits

Honey bad­gers are op­por­tunis­tic for­agers; the com­po­si­tion of the diet varies with sea­sonal changes in prey abun­dance. They have a pri­mar­ily car­niv­o­rous diet, fre­quently din­ing on eggs, small ro­dents, snakes, birds, and frogs. While the ma­jor­ity of the diet is car­niv­o­rous, honey bad­gers also eat fruit, roots, and bulbs. Bee hives are preyed upon be­cause the honey bad­ger also likes to de­vour the bee lar­vae and honey in­side. They have been known to turn to car­rion as a food source if other nour­ish­ment is scarce. (Begg, et al., 2008; Ro­se­vear, 1974)

An ex­ten­sive study of honey bad­gers in the south­ern Kala­hari found that, de­spite the size dif­fer­ence be­tween male and fe­male honey bad­gers, their for­ag­ing pat­terns and for­ag­ing suc­cess were re­mark­ably com­pa­ra­ble. They were ob­served cap­tur­ing prey rang­ing in size from 2 to 2000 g. The types of prey eaten by the honey bad­gers var­ied sea­son­ally, with small mam­mals mak­ing up most of the diet (80%) dur­ing the sea­son of high­est small mam­mal abun­dance (Sep­tem­ber to De­cem­ber). Large snakes made up a sig­nif­i­cant por­tion of the diet (58%) dur­ing the hot-wet sea­son (Jan­u­ary to April). Over­all, adult male honey bad­gers con­sumed an av­er­age of 1.3 kg of food per day while fe­males con­sumed an av­er­age of 0.9 kg per day. (Begg, et al., 2005b)

Honey bad­gers in the Kgala­gadi Trans­fron­tier Na­tional Park have been ob­served con­sum­ing the fol­low­ing prey species: spring­hares (Pedetes capen­sis), Brant's ger­bils (Ger­bil­lis­cus brantsii), hairy-footed ger­bils (Ger­bil­lu­rus paeba), African wild cats (Felis ly­bica), Cape foxes (Vulpes chama), scrub hares (Lepus sax­atilis), yel­low mon­gooses (Cyn­ic­tis peni­cil­lata), striped mice (Rhab­domys pumilio), striped pole­cats (Ictonyx stria­tus), bat-eared foxes (Oto­cyon mega­lo­tis), suri­cates (Suri­cata suri­catta>>), Brant's whistling rats (Parato­mys brantsii), bushveld ele­phant shews (Ele­phan­tu­lus intufi), short-tailed ger­bils (Desmod­il­lus au­ric­u­laris), pygmy mice (Mus min­u­toides), pouched mice (Sac­cos­to­mus campestris), Woos­nam's desert rats (Zelo­to­mys woos­nami), mole snakes (Pseudaspis cana), puff adders (Bitis ari­en­tans), Cape co­bras (Naja nivea), horned adders (Bitis cau­dalis), com­mon bark­ing geckos (Pteno­pus gar­ru­lous), sand snakes (Psam­mophis), giant ground geckos (Chon­dro­dacty­lus an­gulifer), Kala­hari tree skinks (Tra­chylepis oc­ci­den­talis), Bibron's stilet­tos (Atrac­taspis bibronii), bi­col­ored quill snouted snakes (Xeno­cala­mus bi­color bi­color), Cape geckos (Chon­dro­dacty­lus bibronii), African rock pythons (Python na­tal­en­sis), striped sand­veld lizards (Nu­cras tes­sel­lata tes­sel­lata), ground aga­mas (Agama ac­uleate), black and yel­low sand lizards (He­liobo­lus lugubris), pale chant­ing goshawks (Me­lierax canorus), black ko­rhaans (Afro­tis afra), Na­maqua sand­grouse (Pte­ro­cles na­maqua), spot­ted eagle owls (Bubo africanus), ant eat­ing chat (Myrme­co­ci­chla formi­civora), barn owls (Tyto alba), com­mon quails (Co­turnix co­turnix), scaly feath­ered finches (Sporopines squam­ifrons), so­cial weavers (Phile­tairus so­cius), yel­low scor­pi­ons (Opistoph­thal­mus wahlbergii), ter­mites (Hodoter­mes mossam­bi­cus), bee­tles (Melolon­thi­nae), yel­low scor­pi­ons (Parabuthus raudus), black scor­pi­ons (Opistoph­thal­mus car­i­na­tus), black/brown scor­pi­ons (Parabuthus gran­u­la­tus or Parabuthus kala­har­i­cus), lo­custs (Or­thoptera), and soli­tary bee lar­vae (Parafi­delia frie­sei). There were also ob­ser­va­tions of adult honey bad­gers can­ni­bal­iz­ing honey bad­ger cubs. (Begg, et al., 2003a)

  • Primary Diet
  • carnivore
    • eats terrestrial vertebrates
  • Animal Foods
  • birds
  • mammals
  • amphibians
  • reptiles
  • eggs
  • carrion
  • insects
  • terrestrial non-insect arthropods
  • Plant Foods
  • roots and tubers
  • fruit

Pre­da­tion

Being a car­niv­o­rous species, honey bad­gers don't have an ex­ten­sive list of preda­tors. Lions and leop­ards tend to kill only older and weaker honey bad­gers, as the thick, loose skin makes younger bad­gers dif­fi­cult to grasp. The dis­tinc­tive col­or­ing of honey bad­gers, a black body with a white man­tle, mim­ics that of a baby chee­tah, mak­ing any preda­tors less likely to at­tack. The en­larged anal glands can also pro­duce a foul-smelling liq­uid when they are threat­ened. This is typ­i­cally ac­com­pa­nied by a threat dis­play where the honey bad­ger's hair stands on end, the tail is held erect, a loud "rat­tling" sound is made. Honey bad­gers also fre­quently charge at­tack­ers. (Begg, et al., 2003b; Bright, 2000; Eaton, 1976; Nowak, 1991)

Ecosys­tem Roles

As op­por­tunis­tic preda­tors, honey bad­gers prey on a wide va­ri­ety of other or­gan­isms in the ecosys­tem. Al­though a sup­posed sym­bi­otic re­la­tion­ship with greater hon­eyguides (In­di­ca­tor in­di­ca­tor) is often de­scribed in the lit­er­a­ture and pop­u­lar media (in which the bird guides the honey bad­ger to a bee­hive and is re­warded by get­ting to eat the left­overs after the honey bad­ger has eaten its fill), there is no em­pir­i­cal ev­i­dence to sup­port the ex­is­tence of this re­la­tion­ship - it has not been ob­served to occur in the wild. Older honey bad­gers that are less ca­pa­ble of de­fend­ing them­selves be­come prey for large preda­tors such as lions, spot­ted hyae­nas, and leop­ards. (Begg, et al., 2003b; Ro­se­vear, 1974; Van­der­haar and Hwang, 2003)

Eco­nomic Im­por­tance for Hu­mans: Pos­i­tive

Honey bad­gers are very ef­fi­cient at con­trol­ling ro­dent and in­sect pop­u­la­tions, ef­fec­tively re­duc­ing some pest-borne dis­eases. Api­cul­tur­ists find them par­tic­u­larly use­ful, as they act as honey guides to scout out po­ten­tial lo­ca­tions for bee hives. Their or­gans, skin, and other parts were seen as a sym­bol of fe­ro­cious­ness and tenac­ity, so hu­mans in­cor­po­rated them into tra­di­tional med­i­cine. (Begg, et al., 2008; Bright, 2000; Nowak, 1991)

Eco­nomic Im­por­tance for Hu­mans: Neg­a­tive

Honey bad­gers can be quite fierce if star­tled by a human, thus mak­ing them a dan­ger. They have been known to carry ra­bies, which poses a health prob­lem for the sur­round­ing hu­mans and wildlife. They ac­count for 26% of the dam­age done to com­mer­cial bee hives by break­ing into the hives and eat­ing the lar­vae, which re­sults in a mon­e­tary loss for the bee­keep­ers. Honey bad­gers have also been known to stray onto farm­land and at­tack live­stock. (Begg, et al., 2008; Bright, 2000; Nowak, 1991; Zhang, et al., 2009)

Con­ser­va­tion Sta­tus

Honey bad­gers are not com­mon any­where in their range, al­though den­si­ties vary from one re­gion to an­other. The over­all pop­u­la­tion shows a de­creas­ing trend, de­spite the fact that the species is pro­tected in some of the coun­tries that it in­hab­its. The IUCN Red List iden­ti­fies the species as "Least Con­cern" be­cause, al­though the pop­u­la­tion is de­clin­ing, the species has a broad ge­o­graphic range and is not a di­etary spe­cial­ist. The Botswanan pop­u­la­tion is in­cluded on CITES Ap­pen­dix III. The largest threat to honey bad­gers is prob­a­bly human ac­tiv­ity. In­di­vid­u­als are often killed, ei­ther in­ten­tion­ally or un­in­ten­tion­ally with traps and poi­son baits by farm­ers and api­cul­tur­ists try­ing to re­duce preda­tor pop­u­la­tion, and oth­ers are sub­ject to hunt­ing for tra­di­tional med­i­c­i­nal reme­dies. Honey bad­gers have large home ranges, so track­ing and en­sur­ing con­ser­va­tion for them is ex­ceed­ingly dif­fi­cult. (Begg and Begg, 2002; Begg, et al., 2008)

Other Com­ments

The thick skin of honey bad­gers is said to be im­per­vi­ous to bee stings and snake fangs. While their skin may offer them some pro­tec­tion from bees, they are cer­tainly not im­mune to the ef­fects of bee stings as honey bad­gers have oc­ca­sion­ally been caught in api­ary traps and have sub­se­quently died as a re­sult of nu­mer­ous bee stings. Honey bad­gers are known to eat a va­ri­ety of ven­omous snakes, which sug­gests that they have some adap­ta­tions for this diet. Some car­niv­o­rous mam­mals are known to ex­hibit a re­sis­tance to the ef­fects of snake venom, in­clud­ing species of opos­sum (Didel­phi­dae), hedge­hogs (Eri­nace­diae), mon­goose (Her­pesti­dae), skunks (Mephi­ti­dae>>), and sev­eral mustelids (Mustel­idae). It is likely that the honey bad­ger also has re­sis­tance to snake venom, al­though the exact phys­i­o­log­i­cal mech­a­nism has not been demon­strated in honey bad­gers. For other venom re­sis­tant mam­mals, the typ­i­cal mech­a­nisms are ei­ther fac­tors in the blood that in­ac­ti­vate the venom tox­ins, or that the re­sis­tant mam­mal has evolved slight changes in the mol­e­cules that the snake venom tar­gets, mak­ing those mol­e­cules less sus­cep­ti­ble to the dam­ag­ing ef­fects of the venom. (Begg and Begg, 2002; Jansa and Voss, 2011; Van­der­haar and Hwang, 2003; Voss and Jansa, 2012)

There are cur­rently 12 rec­og­nized sub­species of Mel­livora capen­sis, dif­fer­ing in lo­ca­tion and the coat col­oration: the Cape ratel (M.c. capen­sis), Ethiopian ratel (M.c. abyssinica), Turk­men­ian ratel (M.c. buech­neri), Lake Chad ratel (M.c. con­cisa), black ratel (M.c. cot­toni), Nepalese ratel (M.c. in­au­rita), In­dian ratel (M.c. in­dica), white-backed ratel (M.c. leu­conota), Kenyan ratel (M.c. maxwelli), Ara­bian ratel (M.c. pumilio), speck­led ratel (M.c. sig­nata), and the Per­sian ratel (M.c. wilsoni). ("Mel­livora capen­sis (Schre­ber, 1776)", 2014; Barysh­nikov, 2000; Van­der­haar and Hwang, 2003; Wil­son and Reeder, 2005)

Con­trib­u­tors

Zara Hoff­man (au­thor), Sierra Col­lege, Jen­nifer Skillen (ed­i­tor), Sierra Col­lege, Tanya Dewey (ed­i­tor), Uni­ver­sity of Michi­gan-Ann Arbor.

Glossary

Ethiopian

living in sub-Saharan Africa (south of 30 degrees north) and Madagascar.

World Map

Palearctic

living in the northern part of the Old World. In otherwords, Europe and Asia and northern Africa.

World Map

acoustic

uses sound to communicate

altricial

young are born in a relatively underdeveloped state; they are unable to feed or care for themselves or locomote independently for a period of time after birth/hatching. In birds, naked and helpless after hatching.

aposematic

having coloration that serves a protective function for the animal, usually used to refer to animals with colors that warn predators of their toxicity. For example: animals with bright red or yellow coloration are often toxic or distasteful.

bilateral symmetry

having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.

carnivore

an animal that mainly eats meat

carrion

flesh of dead animals.

causes or carries domestic animal disease

either directly causes, or indirectly transmits, a disease to a domestic animal

chemical

uses smells or other chemicals to communicate

crepuscular

active at dawn and dusk

delayed implantation

in mammals, a condition in which a fertilized egg reaches the uterus but delays its implantation in the uterine lining, sometimes for several months.

desert or dunes

in deserts low (less than 30 cm per year) and unpredictable rainfall results in landscapes dominated by plants and animals adapted to aridity. Vegetation is typically sparse, though spectacular blooms may occur following rain. Deserts can be cold or warm and daily temperates typically fluctuate. In dune areas vegetation is also sparse and conditions are dry. This is because sand does not hold water well so little is available to plants. In dunes near seas and oceans this is compounded by the influence of salt in the air and soil. Salt limits the ability of plants to take up water through their roots.

diurnal
  1. active during the day, 2. lasting for one day.
dominance hierarchies

ranking system or pecking order among members of a long-term social group, where dominance status affects access to resources or mates

drug

a substance used for the diagnosis, cure, mitigation, treatment, or prevention of disease

endothermic

animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a (now extinct) synapsid ancestor; the fossil record does not distinguish these possibilities. Convergent in birds.

female parental care

parental care is carried out by females

forest

forest biomes are dominated by trees, otherwise forest biomes can vary widely in amount of precipitation and seasonality.

iteroparous

offspring are produced in more than one group (litters, clutches, etc.) and across multiple seasons (or other periods hospitable to reproduction). Iteroparous animals must, by definition, survive over multiple seasons (or periodic condition changes).

motile

having the capacity to move from one place to another.

mountains

This terrestrial biome includes summits of high mountains, either without vegetation or covered by low, tundra-like vegetation.

native range

the area in which the animal is naturally found, the region in which it is endemic.

nocturnal

active during the night

polygynandrous

the kind of polygamy in which a female pairs with several males, each of which also pairs with several different females.

polygynous

having more than one female as a mate at one time

rainforest

rainforests, both temperate and tropical, are dominated by trees often forming a closed canopy with little light reaching the ground. Epiphytes and climbing plants are also abundant. Precipitation is typically not limiting, but may be somewhat seasonal.

riparian

Referring to something living or located adjacent to a waterbody (usually, but not always, a river or stream).

scent marks

communicates by producing scents from special gland(s) and placing them on a surface whether others can smell or taste them

scrub forest

scrub forests develop in areas that experience dry seasons.

sedentary

remains in the same area

sexual

reproduction that includes combining the genetic contribution of two individuals, a male and a female

solitary

lives alone

tactile

uses touch to communicate

temperate

that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle).

terrestrial

Living on the ground.

tropical

the region of the earth that surrounds the equator, from 23.5 degrees north to 23.5 degrees south.

tropical savanna and grassland

A terrestrial biome. Savannas are grasslands with scattered individual trees that do not form a closed canopy. Extensive savannas are found in parts of subtropical and tropical Africa and South America, and in Australia.

savanna

A grassland with scattered trees or scattered clumps of trees, a type of community intermediate between grassland and forest. See also Tropical savanna and grassland biome.

temperate grassland

A terrestrial biome found in temperate latitudes (>23.5° N or S latitude). Vegetation is made up mostly of grasses, the height and species diversity of which depend largely on the amount of moisture available. Fire and grazing are important in the long-term maintenance of grasslands.

visual

uses sight to communicate

viviparous

reproduction in which fertilization and development take place within the female body and the developing embryo derives nourishment from the female.

year-round breeding

breeding takes place throughout the year

Ref­er­ences

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