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Anti-Ageing: Health or Beauty?

Tue, 07 Jul 2015 13:52:48 +0000

a guest blog by Jorge I. Castillo-Quan, written for the 2015 Write About Research Competition. If you had not heard of the term anti-ageing you have not noticed spam emails, television advertising, and articles in magazines. The term anti-ageing has definitely permeated our society. Most scientists struggle to explain to their non-scientist friends what their […]

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Dr Anjali Goswami lead author in Royal Society Proceedings B

24 November 2010


Marsupial carnivores, including bizarre pouched lions, wolves, and sabretooths, were once as diverse in their appearance as their placental counterparts are today, according to new research.

Millions of years ago large marsupial carnivores dominated both Australasia and South America.  Today, the Tasmanian Devil is the largest marsupial carnivore left, and is on the brink of extinction. Why these large pouched predators have dwindled is a mystery, but one explanation is that they couldn’t compete with their placental counterparts, like ordinary lions and tigers, because of the constraints of marsupial development. 

Marsupial Sabretooth

Now, by looking at the skulls of living and  fossil marsupial and placental carnivores from around the world, scientists have shown that the diversity between species in marsupial carnivores was in fact slightly greater than it is in more familiar placental carnivores, even though there were fewer species overall.  The research is published today in the Proceedings of the Royal Society B.

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