Select the one animal that has all of the bird traits listed above.
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! Steller's sea eagles have large wings with white and brown feathers. They use their sharp beaks to eat fish. Sea eagles build large, high nests for their eggs, which have greenish-white shells.
Birds are a group of animals with similar traits. The following traits can be used to identify birds:
They have feathers.
They have wings.
They have a beak.
They make eggs with 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.
Birds have the following traits:
They have feathers.
They have wings.
They have a beak.
They make eggs with shells.
Compare each animal's traits to the group's traits. Select the animal with traits similar to the group's traits.
A Steller's sea eagle has the following traits:
It has feathers.
It has wings.
It has a beak.
It makes eggs with shells.
A Steller's sea eagle has the traits of a bird. A Steller's sea eagle is a bird.
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 a bird. A Bengal tiger is a mammal.