What are the animals that gnaw or nibble at their food?

Where do migratory fishes like eels spend their life?

How are lizards, crocodiles, turtles and tortoises called?

The forelimbs of a bird are in the form of :

Which among the following is a flightless bird?

Most mammals have two front limbs called:

When a bird lands after a flight, it uses its:

How does an adult frog breath through on land?

Which of the following have strong grinding teeth?

What do snakes have on the underside of their bodies?