Eagle Owls Send Sweeter Valentines When Moon Is Full

(PhysOrg.com) -- Placing a tracking device on breeding owls with a wing span large enough to cover eight humans lined up side-by-side, is not a walk in the park. But, funded by a grant from the Spanish Ministry of Science ...

Small evolutionary shifts make big impacts, study finds

(PhysOrg.com) -- In the developing fetus, cell growth follows a very specific schedule. In the eye's retina, for example, cones -- which help distinguish color during the day -- develop before the more light-sensitive rods ...

Deep-sea vision linked to night life on the reef

To see—and survive—at night, some coral fish have developed visual adaptations that are similar to those of their cousins living in the ocean's darkest depths, new research shows.

Scorpions a clue to restoring ecosystems

Researchers from La Trobe University have found that, in the absence of natural predators such as bilbies, native scorpions are thriving in Australia's damaged sandy landscape.

Did early mammals turn to night life to protect their sperm?

Humans are diurnal—we are active in the day and sleep at night. But diurnalism is by far the exception rather the rule in mammals. About 250-230 million years ago, the mammalian ancestors, called the therapsids, became ...

Mathematical modeling shows why animals see at night

Nocturnal and diurnal mammals see the same—but only for a brief time. When mice are born, the chromatin in the cells of their eyes has a diurnal structure. Day by day, the layout of this chromatin slowly inverts, allowing ...

Beating bird wings generate electricity for data collector

A technology that generates electricity from the beating wings of birds, bats or even moths could produce enough power to run a device that collects data – such as location, migration habits or vital physiological statistics ...

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