LIFE CYCLE: Relict leopard frogs spend their entire lives in close proximity to springs and riparian corridors within the harsh desert environment. Hatchlings and small tadpoles inhabit the shallow ...

Scientists have braved 50C heat and venomous snakes to track down a "leopard-print ... found evidence of eggs and tadpoles for the first time. Investigating the frog's breeding behaviour is ...

A search for dinosaur fossils unintentionally shifted into a discovery of the oldest tadpole ever discovered when a team ...

Researchers know frogs were hopping around as far back as 217 million years ago. But exactly how and when they evolved to begin as tadpoles remains unclear. The oldest-known tadpole fossil found ...

The discovery is helping to clear up a long-standing mystery as to when frogs and toads evolved their iconic two-stage life-cycle. "The research demonstrates that a tadpole stage followed by a ...

It also offers some key answers regarding how frogs evolved during their early days. Finding a fossilized tadpole is kind of ...

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 ...

Once the most abundant and widespread frog species in North America, leopard frogs were widely collected not only for dissection but for the food industry (frog legs) as well. However, massive ...

A northern leopard frog lays low after migrating to the breeding ... for their populations to persist,” Sacerdote-Velat said. A tadpole’s chances of maturing drops sharply without water.

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.

One month after the eggs are laid, tadpoles emerge. LIFE CYCLE: The frog will reach sexual maturity two to three years after eggs are laid, and they have a lifespan of up to 18 years in the wild.

“It's not only the oldest tadpole known, but also the most exquisitely preserved,” said study author Mariana Chuliver, a biologist at Buenos Aires’ Maimonides University. Researchers know frogs were ...