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Platypus

The platypus (Ornithorhynchus anatinus) is a semi-aquatic mammal endemic to eastern Australia, including Tasmania. Together with the four species of echidna, it is one of the five extant species of monotremes, the only mammals that lay eggs instead of giving birth to live young. It is the sole living representative of its family (Ornithorhynchidae) and genus (Ornithorhynchus), though a number of related species have been found in the fossil record.

The bizarre appearance of this egg-laying, venomous, duck-billed, beaver-tailed, otter-footed mammal baffled European naturalists when they first encountered it, with some considering it an elaborate fraud. It is one of the few venomous mammals, the male platypus having a spur on the hind foot that delivers a venom capable of causing severe pain to humans. The unique features of the platypus make it an important subject in the study of evolutionary biology and a recognisable and iconic symbol of Australia; it has appeared as a mascot at national events and is featured on the reverse of the Australian 20 cent coin. The platypus is the animal emblem of the state of New South Wales.

Until the early 20th century, it was hunted for its fur, but it is now protected throughout its range. Although captive breeding programmes have had only limited success and the platypus is vulnerable to the effects of pollution, it is not under any immediate threat.

For more information about Platypus, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Genetic safety in numbers, platypus study finds

(Phys.org) -- Platypuses on the Australian mainland and in Tasmania are fighting fit but those on small islands are at high risk of being wiped out from disease, according to a University of Sydney study.

Biology / Plants & Animals

created May 18, 2012 | popularity 5 / 5 (3) | comments 0

Platypus helps shed new light on mammalian evolution

(PhysOrg.com) -- A large international study published today in Nature has revealed new insights into how the regulation of the entire genome has changed during mammalian evolution over the past 200 millio ...

Biology / Biotechnology

created Oct 20, 2011 | popularity 4.6 / 5 (5) | comments 1 | with audio podcast

Uncovering the evolution of REM sleep: Ostriches sleep like platypuses

(PhysOrg.com) -- The brain activity of ostriches in REM sleep is unique, alternating between fast, small waves - characteristic of REM sleep in other birds, and large, slow waves typical of those occurring ...

Biology / Plants & Animals

created Aug 25, 2011 | popularity 4.8 / 5 (5) | comments 1 | with audio podcast

Dolphins have ability to sense electrical signals

In a new study published in the Proceedings of the Royal Society B, researchers reveal the discovery of how the Guiana dolphin, Sotalia guianensis, is able to sense electric fields of prey in the water using ...

Biology / Plants & Animals

created Jul 29, 2011 | popularity 4.6 / 5 (10) | comments 4 | with audio podcast report

Danger heats up for Australia's platypus

Global warming could shrink the habitat of Australia's duck-billed platypus by a third, researchers warned Friday, with hotter, drier temperatures threatening its survival.

Biology / Ecology

created Jun 24, 2011 | popularity 5 / 5 (2) | comments 0

Unlocking the mystery of the duck-billed platypus' venom

Abandon any notion that the duck-billed platypus is a soft and cuddly creature -- maybe like Perry the Platypus in the Phineas and Ferb cartoon.

Chemistry / Analytical Chemistry

created Jan 13, 2010 | popularity 4.6 / 5 (14) | comments 3 | with audio podcast

New insights into Australia's unique platypus

(PhysOrg.com) -- New insights into the biology of the platypus and echidna have been published, providing a collection of unique research data about the world's only monotremes.

Biology / Plants & Animals

created Nov 02, 2009 | popularity 4.5 / 5 (2) | comments 0

Why sleep? Scientist delves into one of science's great mysteries

(PhysOrg.com) -- Bats, birds, box turtles, humans and many other animals share at least one thing in common: They sleep. Humans, in fact, spend roughly one-third of their lives asleep, but sleep researchers still don't know ...

Medicine & Health / Neuroscience

created Aug 20, 2009 | popularity 4.4 / 5 (22) | comments 24

Platypus link to ovarian cancer

(PhysOrg.com) -- Researchers from the Royal Adelaide Hospital and University of Adelaide believe our oldest mammalian relative may help us to better understand ovarian cancer.

Medicine & Health / Cancer

created Jun 26, 2009 | popularity 5 / 5 (2) | comments 0