A bone cancer tumor more than 215 million years old

More than 215 million years ago, a large amphibian species lived in floodplains in southwestern Poland: Metoposaurus krasiejowensis. On one of these fossils, Polish and American scientists, with the participation of researchers ...

First major dolphin DNA study

The first widespread census of the genetic diversity of common dolphin (Delphinus delphis) populations living along 3000km of Australia's southern coastline has raised key pointers for future conservation efforts.

Could one bacterium put damselflies in distress? 

Many insect species are currently expanding their geographical ranges in response to climate change. In the northern hemisphere, most of these species are moving northward, to escape the warming climate in the south.

More diverse ant colonies raise more offspring

Ant colonies with a higher degree of genetic diversity thrive better than those that consist of individuals with more similar genetic backgrounds. This is the conclusion of an experimental study in which researchers compared ...

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