Rayna Bell, a herpetology expert and curator at the California Academy of Sciences, told Snopes it's true that some frogs have heart-shaped pupils, adding that the photo in question appears to be ...

Glass frogs are pretty remarkable creatures. Of the 150 species, many have transparent abdomens that give viewers a glimpse into their inner workings—guts, heart and all. Now, as Mindy ...

In fish, where there is no separation at all between the two circulations, the cardiac neural crest contributes to all regions of the heart. “In the frog, we were expecting to find something ...

You don't have to be a biologist to see how so-called "glass frogs," a group of largely arboreal tree frogs found in parts of Central and South America, earned that unusually descriptive name ...

A newly discovered glass frog species whose beating heart is visible through its chest is already feared to be in danger, because its habitat is threatened by oil exploitation. The frog ...

He likes it, she says. Tink, however, is silent on the topic. Like many of his species — Dendrobates tinctorius, a poison dart frog — he’s a bit shy. So even though McMahon chats him up on the way ...

causes a loss of electrolytes which in turn saps muscle power throughout the frog, eventually stopping the heart. The finding is seen as an important step towards better understanding the disease ...

THIS useful monograph contains a full and critical summary of recent work on the chemical processes in the frog's heart and their relation to muscular activity. So much of our knowledge of muscle ...