Also see:
- ..Cactus(6)
- ..Canines(24)
- ..Cape Hunting Dog(3)
- ..Caracaras and Falcons(1)
- ..Carnivore Order(97)
- ..Cartilaginous Fish(7)
- ..Castoridae(1)
- ..Cats(32)
- ..Cercopithecidae(1)
- ..Cetaceans(47)
- ..Cheetahs(3)
- ..Chimpanzees(2)
- ..Chiroptera(3)
- ..Chordates(428)
- ..Cicadas(2)
- ..Cockroaches(2)
- ..Coleoptera(12)
- ..Collembola(1)
- ..Coniferophyta - Conifers(6)
- ..Copepoda(1)
- ..Cougars(4)
- ..Crabs(3)
- ..Cranes(2)
- ..Crocodiles(5)
- ..Crows, Jays, and Allies(2)
- ..Crustacea(8)
- ..Cuckoos and Allies(1)
- ..Cuttlefish(4)
- ..Cycadophyta - Cycads(1)