Q:

What is the only mammal that lays eggs?

A:

Quick Answer

According to the University of California at Berkeley, the duck-billed platypus and four species of spiny anteaters are the only mammals that lay eggs. All of them live in New Guinea and Australia.

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Full Answer

Both the platypus and the anteaters are classified as monotremes because of their egg-laying reproductive method. In other ways, they are similar to mammals in that they have a lower jaw with a single bone and three bones in the middle ear. They also rapidly burn calories. In addition, they are hairy and produce milk to feed their young. Although they have no teeth, their snouts or beaks are modified to suit to their food-seeking style.

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  • Q:

    What are some interesting facts about mammals?

    A:

    There are over 4000 species of mammals worldwide, but all share the same defining characteristics that separate them from other members of the phylum Chordata. These characteristics include having hair, being warm-blooded and producing milk for their young. All mammals except the platypus and echidna give birth to live young.

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  • Q:

    What does a platypus eat?

    A:

    A platypus eats insects, shellfish, larvae and other small animals that it finds along the bottom of the streams and rivers near its home. It uses its bill and small rocks to scoop up these organisms.

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  • Q:

    What sound does a platypus make?

    A:

    The platypus is typically a silent animal, but it does make a low growling noise at times. The platypus growls most often when it's upset or disturbed.

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  • Q:

    Is a platypus a mammal?

    A:

    A platypus is a mammal. However, it's an unusual mammal in that it lays eggs. This makes it a monotreme as well as a mammal. It's also an aquatic creature that has a bill that resembles a duck's. The males have spurs on their back legs that produce venom.

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