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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 ...
Female platypuses, in common with echidnas, have rudimentary spur buds that do not develop (dropping off before the end of their first year) and lack functional crural glands. [3] The spur is attached to a small bone that allows articulation; the spur can move at a right angle to the limb allowing a greater range of attack than a fixed spur ...
Male platypuses have sharp spurs on their back legs shaped like a canine tooth. These hollow spurs measure 0.59 to 0.71 inches long and connect to crural glands in the animal’s upper thighs.
Platypuses may have some duck-like characteristics, but they are a rare type of mammal called a monotreme. Monotremes differ from other mammals because they lay eggs instead of giving birth. There ...
The echidna spurs are vestigial and have no known function, while the platypus spurs contain venom. [42] Molecular data show that the main component of platypus venom emerged before the divergence of platypus and echidnas, suggesting that the most recent common ancestor of these taxa was also possibly a venomous monotreme. [43]
Platypuses are peculiar animals native to Australia. They have a bill like a duck, lay eggs like chickens, swim like beavers and produce milk like cows. Their most mundane feature might be their ...
Adult male platypuses largely avoid each other, outside of this mating rivalry. [6] Platypus venom is likely retained from its distant non-monotreme ancestors, being the last living example of what was once a common characteristic among mammals. [2] Fossil records show that venom delivery systems were not sexually dimorphic in ancestral ...
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