Five 'mass extinctions' have decimated our planet since it was formed - now scientists claim the answers to two could be written in the stars.

A discovery about the dark fur of early mammals confirms long-held theories about their evolutionary and ecological behavior.

The early mammals that lived alongside the dinosaurs upwards of 150 million years ago (mya) were likely covered in dark and dusky greyish-brown fur, according to a quantitative reconstruction of ...