Bilateriabilaterally symmetrical animals


    • brown-breasted bulbul
      Pycnonotus xanthorrhous
    • brown-breasted bulbul
      Pycnonotus xanthorrhous
    • brown-breasted bulbul
      Pycnonotus xanthorrhous
    • straw-headed bulbul
      Pycnonotus zeylanicus
    • Pycnopodia helianthoides
    • Surinam cockroach
      Pycnoscelus surinamensis
    • Dreissena polymorpha
    • Pyganodon grandis
    • Dreissena polymorpha
    • Pyganodon grandis
    • white-throated treerunner
      Pygarrhichas albogularis
    • douc langur
      Pygathrix nemaeus
    • douc langur
      Pygathrix nemaeus
    • dwarf fat-tailed jerboa
      Pygeretmus pumilio
    • dwarf fat-tailed jerboa
      Pygeretmus pumilio
    • dwarf fat-tailed jerboa
      Pygeretmus pumilio
    • dwarf fat-tailed jerboa
      Pygeretmus pumilio