Multiple choice general knowledge Pick the odd one out from the options.. LIZARD TURTLE SNAKE WHALE CROCODILE Reveal answer Fill a bubble to check yourself D Correct answer Explanation The whale is a mammal, while lizard, turtle, snake, and crocodile are all reptiles. Whales breathe air, give birth to live young, nurse their offspring with milk, and are warm-blooded. Reptiles are cold-blooded, lay eggs, and have scales or shells.