What kind of animals can stay active even when the weather is cold?

A penguin has _________ feathers to keep them warm.

Which is a reptile?

Which of the following animal is not an oviparous animal?

A __________ is a viviparous animal.

How long does it takes for a human baby to grow to adult size?

Which is the baby of a butterfly?

birds, fish and reptiles lay eggs, they are called ________ animals.

Elephants have huge ears that acts as ______ to cool their bodies.