How do scientists monitor the populations of the threatened California red-legged frog? With careful listening and a little help from AI.

A golden-backed frog was discovered with a tiny mushroom growing out of its flank, leaving scientists to question what might be the cause for the unique fungal growth.

A glass frog during various levels of activity, showing the change in red blood cell perfusion within its circulatory system. The same animal was filmed backlit across all three conditions.