Choose the word which is different from the rest.

Tiger
Dolphin
Zebra
Lion E. Crocodile

The answer is C, zebra. The other four animals are all mammals, while zebras are equines.

A tiger is a large, carnivorous mammal of the cat family native to Asia.

A dolphin is a marine mammal closely related to whales and porpoises.

A lion is a large cat of the genus Panthera native to Africa and India.

A crocodile is a large, predatory reptile of the order Crocodilia.