Paleontologists working in Patagonia have unearthed the oldest-known fossil of a tadpole—and it was a whopper, measuring in at more than six inches long, the size of an adult human hand. The specimen, ...

Frogs display a remarkable diversity of species as a whole, but does the same hold true for their visual abilities? A new study sought to answer this question by collaborating with researchers in ...

Frogs have hopped about Earth since before the time of the dinosaurs, and it shows. Celebrated for their amphibious lifestyle and cacophonous choruses, the long arc of frogs’ evolution has yielded ...

African clawed frogs are known for their flat bodies, vocal organs and claws on the first three toes of the hind feet. Hamilton, ON, Dec. 16, 2024 – Researchers at McMaster University have uncovered ...

Call it a grand-phibian. Scientists have unearthed a fossil of the world’s oldest tadpole in Argentina — a shock finding that could alter our understanding of amphibian evolution, experts say.

Researchers have uncovered unexpected diversity in the genetic processes that determine the sex of the African clawed frog, a significant discovery in what was already one of the most widely studied ...

The fossilization of the tadpole's "delicate structures," like its eyes and gills, allowed for a detailed analysis of the rare find. When you purchase through links on our site, we may earn an ...

A tadpole fossil found in Argentina, dating back at least 161 million years, is the oldest that has ever been discovered. The fossil was found back in January 2020, with news of the discovery ...

“Dorsal green coloration with irregular brown mottling provides camouflage in moss-covered, dimly lit cave entrances; expanded digital discs enhance grip on wet limestone substrates; and fully webbed ...

Sex chromosomes generally evolve from a homomorphic to heteromorphic state. Once a heteromorphic system is established, the sex chromosome system may remain stable for an extended period. Here, we ...