The term 'Australian Mammal' encompasses a variety of animals, including the ECHIDNA (7 letters), a spiny anteater found in Australia and New Guinea; the PLATYPUS (8 letters), an egg-laying mammal with a duck-like bill; the KANGAROO (8 letters), a marsupial found in Australia and New Guinea; the KOALA (5 letters), a tree-dwelling marsupial; the SEAL (4 letters), a marine mammal found in Australian waters; and the DOLPHIN (7 letters), a marine mammal found in Australian waters.