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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 ...
The platypus (Ornithorhynchus anatinus), sometimes referred to as the duck-billed platypus, is a semiaquatic mammal endemic to eastern Australia, including Tasmania.It is the sole living representative of the family Ornithorhynchidae and, together with the four species of echidna, it is one of the five extant species of monotreme – mammals that lay eggs instead of giving birth to live young.
Family Ornithorhynchidae (platypus) Genus Ornithorhynchus (platypus) Platypus (Ornithorhynchus anatinus) Family Tachyglossidae Genus Tachyglossus (short-beaked echidna) Short-beaked echidna (Tachyglossus aculeatus) Genus Zaglossus (long-beaked echidnas) Western long-beaked echidna (Zaglossus bruijnii) Eastern long-beaked echidna (Zaglossus bartoni)
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 platypus — a venomous, egg-laying, duck-billed, amphibious mammal — is one of the strangest creatures in the animal kingdom. When a platypus pelt was first presented by Joseph Banks to English naturalists in the late 18th century, they were convinced it must be a cleverly created hoax.
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Falkland steamer duck: Tachyeres brachypterus (Latham, 1790) 39 Chubut steamer duck: Tachyeres leucocephalus Humphrey & Thompson, 1981: 40 Torrent duck: Merganetta armata Gould, 1842: 41 Spur-winged goose: Plectropterus gambensis (Linnaeus, 1766) 42 Comb duck: Sarkidiornis sylvicola Ihering, HFA & Ihering, R, 1907: 43 Knob-billed duck ...
This contrasts with the modern platypus, where adults are entirely toothless. It has been theorized that the loss of teeth in the platypus was a geologically recent event, occurring only in the Pleistocene (after over 95 million years of tooth presence in the ornithorhynchid lineage) after the migration of the rakali ( Hydromys chrysogaster ...