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Guillemot

Why guillemot chicks leap from the nest before they can fly

Before they have the wing span to actually permit them to fly, young guillemots (Also known as murres) leap hundreds of meters off towering cliffs and flutter down towards the sea, guided by their fathers. Scientists have long wondered why these tiny chicks make this remarkable leap, hoping to avoid the rocks below them, in what seems an unlikely survival strategy for a species Ref. Source 3j.

Guillemot

And here is a testament to how natural selection works. These birds make this leap because they have a higher survival chance. This kind of relates to the growing old thread in that it is natural selection that has taught them this.