Pygmies' stunted growth explains human success

The pygmies of West Africa evolved their short stature independently, and very differently, from their cousins in East Africa, French researchers said Tuesday.

New insights into evolution: Why genes appear to move around

Scientists at Uppsala University have proposed an addition to the theory of evolution that can explain how and why genes move on chromosomes. The hypothesis, called the SNAP Hypothesis, is presented in the scientific journal ...

Growing up trilobite

If you've ever held a trilobite fossil, seen one in a classroom, or walked by one in a store, chances are it was Elrathia kingii, one of the most common and well-recognized trilobites, and collected by the hundreds of thousands ...

How animals reach their correct size

Even small differences in how fast animals grow during development can sum up to large differences in their adult body size. Nevertheless, adults of the same species are usually nearly identical in size. Benjamin Towbin, ...

Feeding habits differ by age and sex in Asian black bears

A 10-year study shows that the diets of Asian black bears vary greatly depending on sex, stage of life, and resource availability, providing important information on foraging strategy according to age-sex classes. Researchers ...

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