True crabs as well as their close relatives have five pairs of legs, for 10 legs in total. However, some of their legs have evolved to serve purposes besides walking, such as self-defense, food acquisition and swimming. read more
In many tropical areas with land crabs, these migrations often result in considerable roadkill of migrating crabs. : 113–114 Once crabs have become juveniles, they will still have to keep moulting many more times to become adults. read more