Dictionaries, Thesauruses, Pictures, and Press Releases
- California condor
- California halibut
- caliper log
- Calkins, Gary Nathan
- Callaeas
- Callaeidae
- Callan, Nicholas
- Callandreau, Pierre Jean Octave
- Callanthidium
- Callendar, Guy Stewart
- Callendar, Hugh Longbourne
- Callichthyidae
- calliclone
- calling hare
- Callinicos of Heliopolis
- Callionymidae
- Callionymus Iyra
- Calliphoridae
- Calliphorinae
- Callistemon