Polysaccharide definition, a carbohydrate, as starch, inulin, or cellulose, containing more than three monosaccharide units per molecule, the units being attached to each other in the manner of acetals, and therefore capable of hydrolysis by acids or enzymes to monosaccharides. See more.
Extinct 'Godzilla' platypus found in Australia. An artistâs impression of a newly discovered species of an extinct platypus, Obdurodon tharalkooschild, discovered in Queensland and a photo (inset) showing the tooth of the platypus. (AAP)
The platypus is one of the most unusual creatures in the animal kingdom. Platypuses (which is the correct plural form, not platypi) have a paddle-shaped tail like a beaver; a sleek, furry body like an otter; and a flat bill and webbed feet like a duck. In fact, the first time a platypus was brought from Australia to Britain, people couldn't believe that it was a real animal.