The researchers used a hormone injection to make the frogs lay eggs in a controlled manner, which were then used in experiments. No further experiments were carried out on the frogs themselves. Clawed ...

This image shows an amplectant pair of Scinax alcatraz laying eggs in water accumulated in a bromeliad. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases ...

Mosquitoes lay their eggs in little rafts on the surface of the water. The mother looks after the eggs until they're ready to hatch. These are tree frogs and they lay their eggs on a leaf up in ...

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.

There are some peculiar habits that tree frogs have when it comes to laying eggs. They frequently deposit their eggs on the ...

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

As she lays eggs, he expels sperm to fertilize them. Though egg laying takes place in spring, frog pairs in mountain ponds can begin hibernation in amplexus—a months-long embrace that may ...

Frogs are amphibians. In the spring, female frogs lay thousands of eggs in pools or streams. Little black dots in clear jelly balls called frog spawn. The black dots eat the jelly and grow.

Wallace's flying frogs inhabit the dense tropical jungles of Malaysia and Borneo. They live almost exclusively in the trees, descending only to mate and lay eggs. When threatened or in search of ...

which is the other native species of frog that we have in Britain," he said. "They lay fewer eggs, so they're much more vulnerable. "A common frog would lay around 2,000 eggs, whereas a pool frog ...