Animal World
The world is full of animals. They can be classified, or grouped. Read about four groups below.
Salmon are fish.
Fish live in water. Fins help them swim. Gills help them breathe. Most fish are covered in scales
scale
FAUZAN MAUDUDDIN—EYEEM/GETTY IMAGES
a small, thin plate that helps form a covering for the bodies of some animals
(noun)
Snakes have scales.
.
Robins are birds.
Birds have feathers. Most birds have strong muscles. These muscles help birds fly. Birds hatch
hatch
to be born by coming out of an egg
(verb)
Let's watch a chick hatch from an egg.
from eggs. They eat with their beaks.
Frogs are amphibians.
Amphibians are cold-blooded animals. Their body temperature changes with their environment
environment
PATRICK J. ENDRES—GETTY IMAGES
surroundings
(noun)
Polar bears live in cold environments.
. Amphibians live in water and on land.
Bears are mammals.
Mammals are warm-blooded animals. Body fat and fur help mammals stay warm. Mother mammals feed their babies milk from their bodies. Humans are mammals too!
Did You Know?
Not all birds can fly. The ostrich is the largest bird in the world. Its wings are too weak to fly. It uses its strong legs to walk and run.
More from Animals
Share a Link
- Click the icon above to copy the url link to your clipboard.
- Paste the link into the location in which you share assignments with students. Examples might include, but are not limited to Canvas, Schoology and Edmodo.
Google Classroom
- Click on the icon above to share the article with a class in your Google Classroom.
- Choose an action. Options might include creating an assignment or asking a question.
