Have you ever wondered how city life affects animals like frogs? A new study reveals that urban Túngara frog tadpoles develop faster —but end up being smaller — than tadpoles from forests, probably ...

Scientists at Forsyth may have moved one step closer to regenerating human spinal cord tissue by artificially inducing a frog tadpole to re-grow its tail at a stage in its development when it is ...

Leptin, the hormone secreted by fat cells that plays an important role in food intake, has been described for the first time in a cold-blooded vertebrate, the South African clawed frog Xenopus. Leptin ...

A tadpole fossil, dating back over 160 million years, has been identified as the oldest ever found. Measuring an impressive ...

A photograph of a giant, green-and-yellow tadpole longer than a human hand turned up in an X post on Feb. 12, 2025. At the time of this reporting, the post had received more than 296,000 views. At the ...

A 161 million-year-old fossil, linked to a line of extinct frog-like amphibians, is the oldest tadpole ever found. By Asher Elbein The metamorphosis of a frog from baby to adult is one of nature’s ...

Australian ground frogs take the standard weirdness of frog reproduction and development to the next level...and then to the ...

Organisms living in seasonal environments are often limited by the time available to complete their development. Especially individuals in northern populations may face severe time constraints in ...

Behavioral Ecology and Sociobiology, Vol. 62, No. 11 (Sep., 2008), pp. 1821-1829 (9 pages) We examined the behavioral and developmental responses of Xenopus laevis larvae to their mirror images in ...

AT the beginning of April last I collected some frog ova for the purpose of making observations on development. Tadpoles appeared about April 9, and from time to time from that date until July 17, ...

Conservation biologist Brian Gratwicke searches with his team for frogs in Altos de Campana National Park in Panama. Nate Weisenbeck, a research intern with the Panama Amphibian Rescue and ...