Fire and logging reduce homes for threatened mammals

Fire and logging are substantially reducing the number of hollow-bearing trees that threatened and critically endangered Australian mammals can use as homes, a new study from The Australian National University (ANU) warns.

Biodiversity hypothesis called into question

Biologists have long considered the origins and continued coexistence of the immense diversity of species found in our environment. How can we explain the fact that no single species predominates? A generally accepted hypothesis ...

Youths beware of bullying by best friends

We wouldn't expect best friends to bully each other—but they can in unexpected ways. Sometimes, bullying behaviour by young people that would usually be considered harmful is accepted by a victim, because they greatly value ...

Globalization is reweaving the web of life

As introduced species spread around the world, the complex networks of interactions between plants and animals within ecosystems are becoming increasingly similar, a process likely to reinforce globalization's imprint on ...

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