Glossary

w
Warm-blooded - 

An animalAny living thing that is not a plant. Most animals can move about freely. All use plants or other animals as food. All have sensory organs. whose body temperature stays fairly constant, no matter what the temperature of the air around it.

Wattles - 

Fleshy appendages on the chin or throat, such as on a birdAn animal that has wings and is covered with feathers. Birds have a backbone, are warm-blooded, produce young from eggs, and walk on their two legs. Most can fly. or goat.

Wean/Weaning process - 

When an young mammalA warm-blooded animal with a backbone that breathes air, and has at least some hair at some point during its life. The females have glands that produce milk, which they feed to their young. no longer gets milk from its mother./A time when a young mammalA warm-blooded animal with a backbone that breathes air, and has at least some hair at some point during its life. The females have glands that produce milk, which they feed to their young. gradually gets less milk from its mother as it learns to eat the solid food of an adult. Mother and offspring also spend more and more time apart from each other.

Webbed feet - 

The feet of some birds, such as ducks, some mammals, such as otters, or some reptiles, such as turtles, where the toes are connected near the tips by a thin membrane of skin. This helps these animals paddle or swim through water.

Wildlife refuge - 

An area of land set aside to shelter and protect animals.

Wingspan - 

The measurement between the tips of a birdAn animal that has wings and is covered with feathers. Birds have a backbone, are warm-blooded, produce young from eggs, and walk on their two legs. Most can fly. or insectA small animal without a backbone. Its body is divided into three parts. Insects have three pairs of legs and usually two pairs of wings. Flies, ants, grasshoppers, and beetles are a few of the many kinds of insects.'s wings when fully extended.

Worm - 

A small, long, thin animalAny living thing that is not a plant. Most animals can move about freely. All use plants or other animals as food. All have sensory organs. with a soft body and no legs. Worms are cold-bloodedAn animal whose body temperature changes with the temperature of the air or water around it, as a turtle or fish. and have no backbones.