Extinct carnivorous mammals apparently shrank in size during a global warming event that happened 55 million years ago, a new study led by the University of Florida, in collaboration with Ross Secord, assistant professor at the University of Nebraska, and Doug Boyer, assistant professor at Brooklyn College, sustains.... |
24 August 2010
11:06 GMT |
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A group of researchers has recently managed to crack the “code” hyenas use when they laugh and giggle. According to the investigators, these behaviors contain a large amount of information about the animals' social status, age, mood and desires, all of them transmitted in the most basic forms possibl... |
30 March 2010
05:49 GMT |
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The Gladysvale cave, in South Africa, has been the spot of one of the most important archaeological finds made over the past few years, namely a block of human hair that has been discovered in dung remains originating from a prehistoric hyena, or whatever animal the hyena developed from. The hairs, about 40 of them, ... |
11 February 2009
04:36 GMT |
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1.Hyenas appeared 25 million years ago from ancestors related to the civet cats. Even if the size of civet cats, those early hyenas already had molars for breaking bones. Cave hyena, that inhabited Europe during the Ice Age, was twice the size of the modern spotted hyenas. 2.Spotted hyena is the largest living hyena.... |
23 January 2008
03:31 GMT |
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Yes, testosterone is the male sex hormone that makes males muscular, aggressive and horny. But what happens when the female is a 'package' of testosterone? Not only 'fully loaded', but with higher amounts than males have?This is the case of the spotted hyena. In fact, the clitoris of the spotted h... |
16 August 2007
13:16 GMT |
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Perhaps amongst the beasts that haunt our imagination, triggering the deepest fears, there is nothing more powerful that the big cats. Up until a few millennia ago, we were their breakfast, lunch and dinner. And even today, lions, leopards and tigers are causing quite a number of victims in Africa and Asia. Still, so... |
28 June 2007
07:03 GMT |
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During the Ice Age, huge beasts forming the megafauna, like mammoths, saber-toothed cats and woolly rhinos roamed the continents of our planet. But the Ice Age ended some 10,000 years ago and most of the megafauna disappeared, a fact which is connected to the spread of modern humans. This fauna loss left the Holocene... |
1 June 2007
10:06 GMT |
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