Stressed-out tadpoles grow larger tails to escape predators

When people or animals are thrust into threatening situations such as combat or attack by a predator, stress hormones are released to help prepare the organism to defend itself or to rapidly escape from danger—the so-called ...

Tadpoles not just baby frogs

(Phys.org)—Tadpoles may be vital in helping maintain the ecosystems of freshwater streams, a James Cook University researcher is discovering.

Dying brightly: Fluorescence lights up cells programmed to die

Programmed cell death, or apoptosis, occurs tens of millions of times every day in every human body. Researchers in South Korea have devised an easy method to detect apoptotic cells by fluorescence, as they report in Chemistry—An ...

New study sheds light on dinosaur size

Dinosaurs were not only the largest animals to roam the Earth - they also had a greater number of larger species compared to all other back-boned animals - scientists suggest in a new paper published in the journal PLOS ONE ...

Frog killing fungus found to infect crayfish too

(Phys.org)—A team of US biologists has found that the chytrid fungus, believed to be responsible for amphibian deaths worldwide, also infects and kills crayfish. In their paper published in the Proceedings of the National ...

Climate change may alter amphibian evolution

Most of the more than 6,000 species of frogs in the world lay their eggs in water. But many tropical frogs lay their eggs out of water. This behavior protects the eggs from aquatic predators, such as fish and tadpoles, but ...

Chilean biologist saving forests with frogs

(Phys.org)—Chilean biologist Virginia Moreno is besotted with frogs. So much so that she is taking on the might of the forestry industry to study one frog in particular – Chile's critically endangered mountain frog, Telmatobufo ...

Endangered mountain yellow-legged frogs might get a hoppy ending

To reach one of the last wild populations of the mountain yellow-legged frog on Earth, Adam Backlin and Elizabeth Gallegos tramped down a no-nonsense trail, scaled cliffs and barged through nettles along a vein of water in ...

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