Scientist: Frog could be 25M years old
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A Mexican researcher announced the rare find of a tiny tree frog completely preserved in amber on Wednesday that he estimates lived about 25 million years ago.
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Global warming could cut a swathe through the planet's species over the coming centuries, warns a study released Wednesday that shows a link between rising temperatures and mass extinctions reaching back half a billion years.
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A new fossil discovery from China shows that a tiny squirrel-like creature glided through the air during the age of dinosaurs, more than 75 million years earlier than scientists had documented that ability in a mammal.
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Scientists find what appears to be a cure for the disease that is wiping out many of the world's frog species.
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Scientists have called for a Noah's Ark-type rescue for thousands of frog species they say could face the same fate as the now-extinct dinosaurs unless drastic measures are taken swiftly.
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A synthetic molecule based on one found in frog egg cells could potentially be used to treat brain tumours.
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Vertebrate Paleontologist Amy C. Henrici of the Carnegie Museum of Natural History in Pittsburgh holds a stone fossil of a new genus and species of terrestrial adopted amphibian that lived in the Pennsylvanian Period, about 300 million years ago, Monday
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A new finding may explain how stress could ultimately lead to premature aging.
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By Carolyn Y. Johnson, Globe Correspondent | October 15, 2004. The first vertebrate species to begin hopping and crawling on land 350 million years ago may be the first to die out, according to a study released
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Fossils of a 56-million-year-old mouse-size animal discovered in Wyoming could redraw humans' family tree, scientists say.
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A 70-million-year-old fossil of a giant frog has been unearthed in Madagascar by a team of UK and US scientists.
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Scientists try to figure out how far off the next ice age is.
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Global warming over the coming century  could mean a return of temperatures last seen in the age of the  dinosaur and lead to the extinction of up to half of all  species, a scientist said on Thursday.
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The growing number of deformed frogs in recent years is caused at least partly by runoff from farming and ranching, new research indicates.
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Science & environment: Scientists home in on secrets of longevity in study of pensioners who live to 90 and beyond
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Scientists believe they have disproved a 30-year-old notion of what causes Down's syndrome.
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The North American bullfrog population is booming. That may sound like good news, but it isn't&#151;not when the frog has leaped far beyond its native habitat.