The frogs produce the toxin by modifying the original version, pumiliotoxin 251D.

The frogs of a switch produced clanking thumps.

He could not rule out the possibility that frogs produce some poisons internally, as do rattlesnakes.

However, only frogs of the genus Phyllobates produce the highly lethal batrachotoxin.

Eventually the frog produces so much glucose that its tissues are completely protected from the cold.

When scientists visited a site at Covie they found that the frogs have not produced any individuals (adults or tadpoles) for three years.

Granted, you've probably never really looked, but some frogs, it turns out, produce a natural mosquito repellent in their skin.

Initially, male frogs will produce advertisement calls which convey information about species, sexual readiness, and size.

So little is needed that one small frog an inch long produces enough poison to arm fifty arrows.

Like other Leiopelma species, these frogs do not produce advertisement vocalisations to attract mates.