The red-eyed tree frog has become one of Costa Rica’s most iconic creatures, admired for its vibrant colors and widespread presence across the country. This frog, known for its striking red eyes, ...

Red-eyed tree frog. Photo by Rhett Butler. In recognition of Amphibian Ark winning mongabay.com’s 2011 conservation award, our pictures of the day this week will focus on amphibians. The red-eyed tree ...

A new study from the Smithsonian Tropical Research Institute (STRI) shows that red-eyed treefrog embryos hatch early when exposed to high ammonia levels — an environmental cue that it’s too hot and ...

One would be hard-pressed to take a walk outside without hearing the sounds of calling animals. During the day, birds chatter back and forth, and as night falls, frogs and insects call to defend ...

Researchers have discovered the male Central American red-eyed tree frog uses vibrations to mark out his territory for mating. Greg Johnson, from Flinders University and Adelaide Zoo, led a team of ...

Tree kangaroos are so unusual that when Europeans first encountered them in Australia in 1872, they were sceptical. Who would believe a kangaroo could climb a tree? But the recent birth of Chimbu – a ...