Select the one animal that has all of the amphibian traits listed above.
Common ostriches have a beak and feathers. They also have two wings, but they cannot fly. Ostriches lay the biggest eggs of any bird. The shell of an ostrich egg is so hard that you can stand on the egg without breaking it! Great crested newts have moist brown skin with black spots. Adult great crested newts mostly live on land, but young newts live underwater. Great crested newt eggs do not have shells. The female newts wrap their eggs in leaves for protection.
Amphibians are a group of animals with similar traits. The following traits can be used to identify amphibians:
They spend part of their lives in water and part on land.
They have moist skin.
They make eggs with no shells. Observe the animals and read the descriptions.
Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, scientists compare the animal's traits to other animals' traits. Scientists classify animals with similar traits into a group.
To decide if an animal is part of a group, look at the traits of the group.
Amphibians have the following traits:
They spend part of their lives in water and part on land.
They have moist skin.
They make eggs with no shells.
Compare each animal's traits to the group's traits. Select the animal with traits similar to the group's traits.
A common ostrich has the following traits:
It has feathers.
It has wings.
It has a beak.
It makes eggs with shells.
A common ostrich does not have all of the traits of an amphibian. A common ostrich is a bird.
A great crested newt has the following traits:
It spends part of its life in water and part on land.
It has moist skin.
It makes eggs with no shells.
A great crested newt has the traits of an amphibian. A great crested newt is an amphibian.