Evolution, Vol. 75, No. 12 (DECEMBER 2021), pp. 3203-3213 (11 pages) Dollo’s law of irreversibility states that once a complex structure is lost, it cannot be regained in the same form. Several ...
Researchers studying amphibians in Asia have made an exciting discovery: a new species of frog with teeth, named Limnonectes cassiopeia, has been identified on the island of Luzon in the Philippines.
A fragment of upper jaw fossil from the Early Cretaceous is among the oldest examples of a toothless amphibian in the fossil record Chihiro Kai The arid valleys of Wyoming’s Cloverly Formation are ...
College students know senior year means hours spent working toward the future. However, for University of Dayton senior Madeline Brinkman, working toward the future meant first diving millions of ...
Most everyone recognizes frogs. Frogs, like salamanders and newts, are amphibians. Unlike salamanders, they have made a major evolutionary detour from the body plan of their ancient ancestors. The ...
Many of the world’s most beloved frogs and amphibians are headed for extinction, but inside “The Ark” in Panama, some of those threatened species are given a fighting chance. Using innovative ...
Once they near emergence, the female's thin skin bulges and pulsates with the struggles of the impatient froglets. The day ...
Crawfish frogs (Lithobates areolatus) were once common throughout the central and southern United States, but are now in decline in some of their range. The reasons aren’t completely known, but some ...
While often confused, frogs and toads, both amphibians, exhibit distinct traits. Frogs boast smooth, moist skin and long legs ...
Across Central and South America, one group of bejeweled frogs is making a comeback. Harlequin frogs — a genus with over 100 brightly colored species — were one of the groups of amphibians hit hardest ...
If you spend a lot of time with certain frogs, you’ll probably notice a behavior called toe-tapping: a rapid up-and-down movement of the middle toes of the hind legs. People have known about ...
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