Russian scientists make rare find of 'blood' in mammoth

Russian scientists claimed Wednesday they have discovered blood in the carcass of a woolly mammoth, adding that the rare find could boost their chances of cloning the prehistoric animal.

Special cells contribute to regenerate the heart in zebrafish

It is already known that zebrafish can flexibly regenerate their hearts after injury. An international research group led by Prof. Nadia Mercader of the University of Bern now shows that certain heart muscle cells play a ...

Symphony of genes

One of the most exciting discoveries in genome research was that the last common ancestor of all multicellular animals—which lived about 600 million years ago—already possessed an extremely complex genome. Many of the ...

Intelligent males may make female birds swoon: study

Male birds are often the ones with the most vibrant feathers, or the most elaborate songs, but researchers said Thursday that what female birds could really appreciate is a male who shows his intelligence.

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