This story appears in the March 2017 issue of National Geographic magazine. These frogs put the “group” in “group sex”—and that helps them thrive. Of all vertebrates, gray foam-nest tree ...

The series of videos, filmed over the last seven months by Capouellez, focuses on wild populations of American toads, wood frogs, gray tree frogs and pickerel frogs and will be posted during the week.

A juvenile American tree frog (Hyla cinerea) of unknown age was presented to the Exotic Service at the Tufts University School of Veterinary Medicine for an acute onset of swelling of the left ...