To navigate, flies make flexible mental maps of the world

In a circular arena, a fruit fly navigates a virtual landscape illuminated by black and blue lights. The fly is tethered in place, able to flap its wings but not move its head. Images on the wall rotate to give the illusion ...

Baby pterodactyls could fly from birth

A breakthrough discovery reveals that pterodactyls, extinct flying reptiles, had a remarkable ability—they could fly from birth. The importance of this discovery is highlighted by the fact that no other living vertebrates ...

How egg cells choose their best powerhouses to pass on

Developing egg cells conduct tests to select the healthiest of their energy-making machines to be passed to the next generation. A new study in fruit flies, published online May 15 in Nature, shows how the testing is done.

Lack of sleep is not necessarily fatal for flies

Male flies kept awake do not die earlier than those allowed to sleep, leading researchers to question whether sleep, in flies at least, is essential for staying alive.

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