Alaskan wood frogs stock up on solutes to survive

Outwardly, the tiny wood frog, Rana sylvatica, does not look like your regular arctic inhabitant. Yet despite their tiny stature, these little frogs are actually quite hardy and can tolerate freezing of up to two-thirds of ...

Scientists discover ultrasonic communication among frogs

(PhysOrg.com) -- UCLA scientists report for the first time on the only known frog species that can communicate using purely ultrasonic calls, whose frequencies are too high to be heard by humans. Known as Huia cavitympanum, ...

Humans, sharks share immune-system feature

A central element of the immune system has remained constant through more than 400 million years of evolution, according to new research at National Jewish Health. In the September 29, 2011, online version of the journal ...

Some shape-shifting animals that can morph to fool others

Animals come in all different shapes and sizes, but only a few can change their shapes. Researchers in Ecuador recently reported a new species of frog that can change its skin texture from spiny to smooth – the first ever ...

60 possible new species found in Suriname forest (Update)

Braving perilous river rapids in Suriname's rainforest, international scientists found six frogs and 11 fish that are among 60 creatures that may be new species, a tropical ecologist with a U.S.-based conservation group said ...

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