The Eiffinger's tree frog (Kurixalus eiffingeri), found on Ishigaki and Iriomote islands in Japan, has a unique biological adaptation: its tadpoles do not defecate during their early developmental ...

An artist depicts the tadpole and frog individuals of the Notobatrachus degiustoi species. The oldest known tadpole fossil, which belongs to this species, was found in the Patagonia region of ...

When tadpoles become frogs, their body shape isn't all that changes. The vast majority of frogs and toads begin their lives as aquatic larvae before they undergo a process known as metamorphosis.

While in search of dinosaur fossils, a team of Argentine and Chinese scientists in Argentina found something else instead: parts of a tadpole’s skull and backbone, preserved in a slab of sandstone.