ornithorhynchus [mod. f. ornitho- + bill.] An aquatic mammal of Australia, the duck-billed platypus or duck-mole (O. paradoxus or anatinus), the only species of its genus and family in the order Monotremata; it has glossy dark-brown fur, webbed feet and bill like a duck's; it lays eggs like a bird and has a whistle like a cow. can be seen at dusk searching for the illusive holimatuka plant, once found the plant is stripped down and smoked...............how else would you look like that?