East Rock seventh grader Jeryl searches for frog’s large intestines… Credit: Maya McFadden Photos …while others check out the frog’s tongue and teeth. East Rock School seventh graders Leia and Lesly ...

The wood frog (Lithobates sylvaticus or Rana sylvatica) has a broad distribution over North America, extending from the Boreal forest of Canada and Alaska to the southern Appalachians. Portrait macro© ...

Wood frogs are highly dependent on environmental conditions to determine whether they are active. After fattening up during ...

This is the way a wood frog freezes: First, as the temperature drops below 32 degrees, ice crystals start to form just beneath the frog's skin. The normally pliant and slimy amphibian becomes — for ...

Glass frog photographed during sleep and while active, showing the differences in red blood cells within the circulatory system. Jesse Delia via AMNH When a tiny glass frog dozes off to sleep, its ...

Using cutting-edge genetic engineering, researchers have developed a model to study hereditary kidney disease with the help of tropical frogs. The method allows them to collect large amounts of data ...

When Nabil Koney dissected a pig during his freshman year of high school, he says the most memorable part of the experience was the smell. That wasn’t a problem when the now senior dissected a ...