A chemical detector made from egg cells of the African clawed frog could give robots a new sense of smell. About the size of a matchbook, the new device consists of two electrodes - strips of ...

Even more intriguing, the frog was clearly gravid, or pregnant with eggs. The authors explain that frog fossils with ...

To protect their eggs, bubbling secretions from their bodies allow tree frogs to make characteristic “foam nests.” Usually ...

Egg Wuhan continues to promote the construction of a "zero waste city" and has achieved significant results in five areas Financial Investigation丨Ordering food, applying for credit cards, booking ...

In the Andaman islands straddling India’s east coast, a species of frogs mate and lay their eggs while upside down, a new study has found. Both the male and female Charles Darwin frogs position ...

the frog would lay eggs. Frog or "Hogben" tests were commonplace from the 1940s through the early 1960s. The animal's popularity led to both a scientific revolution and a global ecological crisis.

Frogs mate in a position called amplexus, with the smaller male clasping the female from behind in a ride that can last two days or more. As she lays eggs, he expels sperm to fertilize them.

Jacob King/PA Wire The pool frog lays far fewer eggs than the common frog found in Britain He said the landscape at the Norfolk Wildlife Trust's Thompson Common site, near Thetford, had been ...