Lizards re-evolved eggs after thousands of years of live births
5 December 2017
It’s an evolutionary U-turn: a group of egg-laying lizards evolved from live-bearing ancestors, which are in turn descended from even older egg-layers
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Premium
Why do female monkeys spend so long looking at rugged males?
4 December 2017
Female monkeys spend more time staring at males that have highly masculine facial features, but we don’t know if they fancy them or fear them
Hummingbirds have massive hearts to power their hovering flight
1 December 2017
Birds that hover in front of flowers have huge hearts to power their energy-intensive flight, and even birds that glide effortlessly need fairly big hearts to keep it up
Baby pterosaurs were cute, defenceless and unable to fly
30 November 2017
Over 200 pterosaur eggs have been found at a site in China, the largest such discovery on record, and the embryos inside reveal what newly-hatched pterosaurs were like
