Christmas Island red crabs are large crabs with the carapace measuring up to 116 millimetres (4.6 in) wide. The claws are usually of equal size, unless one becomes injured or detached, in which case the limb will regener… See more

Like most land crabs, red crabs use gills to breathe and must take great care to conserve body moisture. Although red crabs are diurnal, they usually avoid direct sunlight so as not to dry out, and, despite lower temp… See more