| 1 | There are more kangaroos than people in Australia. | |
| 2 | Only two kinds of egg-laying mammals are left on the planet today - the duck-billed platypus and the echidna, or spiny anteater. | |
| 3 | The baby spiny anteaters drink milk from ducts inside the pouch. They live in the pouch until they are old enough to walk. | |
| 4 | "Spiny anteater" is the nickname of a strange little animal (1) whose real name is echidna. | |
| 5 | So far scientists have found no fossil evidence of an echidna transition from water; |