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The platypus (Ornithorhynchus anatinus), [4] sometimes referred to as the duck-billed platypus, [5] is a semiaquatic, egg-laying mammal endemic to eastern Australia, including Tasmania. The platypus is the sole living representative or monotypic taxon of its family Ornithorhynchidae and genus Ornithorhynchus , though a number of related species ...
This group is known as the duck-billed dinosaurs for the flat duck-bill appearance of the bones in their snouts. The ornithopod family, which includes genera such as Edmontosaurus and Parasaurolophus , was a common group of herbivores during the Late Cretaceous Period . [ 1 ]
The platypus has an average body temperature of about 31 °C (88 °F) rather than the averages of 35 °C (95 °F) for marsupials and 37 °C (99 °F) for placentals. [ 30 ] [ 31 ] Research suggests this has been a gradual adaptation to the harsh, marginal environmental niches in which the few extant monotreme species have managed to survive ...
The platypus, a duck-billed, beaver-tailed mammal that adores the water, is so beloved in its home country of Australia, the nation has featured the species on its 20-cent coin.
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The diet of some species consists of ants and termites, but they are not closely related to the American true anteaters or to hedgehogs. Their young are called puggles. Echidnas evolved between 20 and 50 million years ago, descending from a platypus-like monotreme. [4] This ancestor was aquatic, but echidnas adapted to life on land. [4]
Billed snouts on the duck-billed dinosaurs hadrosaurs are strikingly convergent with ducks and the duck-billed platypus. [76] Ichthyosaurs (such as Ophthalmosaurus) [77] are marine reptile of the Mesozoic era which looked strikingly like dolphins. [78] Several groups of marine reptiles evolved hyperphalangy similar to modern whales. [61]
The dabbling duck group, of worldwide distribution, was delimited in a 1986 study [3] to include eight genera and some 50–60 living species. However, Salvadori's teal is almost certainly closely related to the pink-eared duck, and other genera are likewise of unresolved affiliation.