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Platypus venom. The platypus is one of the few living mammals to produce venom. The venom is made in venom glands that are connected to hollow spurs on their hind legs; it is primarily made during the mating season. [1] While the venom's effects are described as extremely painful, it is not lethal to humans.
12. Okt. 2010 · Like eyes, fins and wings, which have evolved independently in a number of different lineages, platypus venom looks to be an example of convergent evolution, says Wesley Warren, a genomicist at ...
17. Juni 2020 · The platypus ( Ornithorhynchus anatinus) belongs to the mammalian order of Monotremata, whose members (the platypuses and the echidnas) are distinct from all other mammals chiefly because they lay eggs. The sauropsids, the lineage that gave rise to reptiles (including birds), and the lineage that gave rise to therapsids (mammal-like reptiles ...
1. Jan. 2016 · The Platypus History. Since its discovery by Europeans in 1797, the venomous platypus (Ornithorhynchus anatinus) has remained an enigma.At first, when a dried skin was sent back to England, it was thought to be the trick of a taxidermist (Grant 2007), and even once it was proven to be real, controversy raged over its mode of reproduction and its classification.
13. Jan. 2010 · Their study is in the Journal of the American Chemical Society, a weekly publication: “ Duck-Billed Platypus Venom Peptides Induce Ca2+ Influx in Neuroblastoma Cells .”. Masaki Kita, Daisuke Uemura, and colleagues note that spurs in the hind limb of the male platypus can deliver the venom, a cocktail of substances that cause excruciating pain.
30. Juli 2016 · The platypus is an Australian mammal with some weirdly reptilian traits, like egg laying. While we think of mammals and reptiles as very different, at one time they shared a common ancestor, says ...
24. Apr. 2019 · Platypus milk contains an antimicrobial protein unique to monotremes, monotreme lactation protein (MLP), which likely evolved to mitigate microbial infection in response to the lack of nipples (Enjapoori et al. 2014) and may perform the functions of other mammalian milk antimicrobials not present in platypus milk (Whittington and Belov 2009).
