08/06/2006

Do female guppies risk their lives to avoid sex?

Sexual harassment is burden that females of many species face, and some may go to extreme lengths to avoid it. In a paper published in The American Naturalist, Dr Darren Croft from the University of Wales, Bangor and a research ...

Variable physical laws

Physical quantities such as the speed of light, the gravitational constant and the electron mass are believed to be the same independent of where and when they appear in the universe. Therefore, they are known as constants ...

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