Select the one animal that has all of the amphibian traits listed above.
Amazon milk frogs have moist skin and live in South American rain forests. They hatch from eggs with no shells and begin their lives in water. As adults, Amazon milk frogs live in trees and eat insects. Bengal tigers are one of the world's largest living cats. They have black, white, and orange fur. Female Bengal tigers feed their offspring milk. Male Bengal tigers can be almost twice as large as females!
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 Bengal tiger has the following traits:
It feeds its offspring milk.
It has hair.
A Bengal tiger does not have all of the traits of an amphibian. A Bengal tiger is a mammal.
An Amazon milk frog 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.
An Amazon milk frog has the traits of an amphibian. An Amazon milk frog is an amphibian.