Found in Australia and New Guinea, the platypus and echidna are called monotremes, and they are unique for being the only mammals that lay eggs. The amphibious platypus has a bill and webbed feet ...

Both animals, known as monotremes, are the only mammals that lay eggs. The amphibious platypus spends much of its time in the water, while the echidna, often called a spiny anteater, is at home on ...

Found in Australia and New Guinea, the platypus and echidna are called monotremes, and they are unique for being the only mammals that lay eggs. The amphibious platypus has a bill and webbed feet, ...

Both animals, known as monotremes, are the only mammals that lay eggs. The amphibious platypus spends much of its time in the water, while the echidna, often called a spiny anteater, is at home on ...