Scientists crack mystery behind shape of bird eggs

A centuries-old mystery behind the shape of a bird's egg has been solved by scientists at the University of Sheffield as part of one of the longest-running scientific studies of its kind.

Why do guillemot chicks leap from the nest before they can fly?

It looks like a spooky suicide when small, fluffy guillemot chicks leap from the cliffs and fall several hundred metres towards the sea - long before they are fully fledged. But researchers have now discovered that there ...

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