Why is a crab an amphibian?

Answer 1

Neither. All crabs are crustaceans.

Amphibians are cold-blooded, lay eggs and have an internal skeleton with soft skin.
Crustaceans are cold blooded, lay eggs and have an external skeleton (shell).

Answer 2

It is a chelicerate, like a spider or a scorpion.

No, it is an arthropod and not a true crab. It is more closely related to Spiders than to crabs. It is worth noting that the unique blue blood of the horseshoe crab is farmed (the crabs are treated well) for medical purposes.

Answer 3

Crabs are crustaceans, however they are "amphibious" (not amphibians).

Answer 4

A crab is a crustacean and an invertibrate not an amphibian. It also is in the Animal Kingdom.

Answer 5

Crabs aren't amphibians, they are crustaceans. They are in the Animal Kingdom.

Answer 6

Crabs are difficult animals to understand but does it change during its life. No it is not

Answer 7

yes