Crabs evolved to live away from the ocean up to 17 different times

Unlike most other animal groups that left the sea behind, crabs have done it many times throughout their evolutionary history – and some crab lineages have even reversed course back to the ocean

​Unlike most other animal groups that left the sea behind, crabs have done it many times throughout their evolutionary history – and some crab lineages have even reversed course back to the ocean Unlike most other animal groups that left the sea behind, crabs have done it many times throughout their evolutionary history – and some crab lineages have even reversed course back to the ocean