Freshwater crab
In total, there are about 6700 species of crab. Freshwater crabs show different behaviour than other crabs. Other crabs release a large number of larvae into the environment. These larvae need to cope on their own. In contrast, freshwater crabs care for the young. Many freshwater crabs are endemic to small areas. This means there if there is a threat of the area of dissapearing, this also applies to the crab, which becomes threatened with extinction.