Coconut Crabs
Coconut crabs are considered to be the largest land crustacean, but as it turns out, they’re also inhabitants of the sea. But they tend to stick to the water when they’re young before heading towards land when they’re older. And their respiratory system allows them to breathe air as well as underwater. These types of hermit crabs have a powerful sense of smell and love to eat coconuts, which is where they got their name from.