The creatures, which had not previously been seen in the Santa Monica Mountains for decades, also were threatened by storms, experts say.

In 1996, when herpetologist Rafe Brown accompanied a few biologists to the Philippine island of Mindanao to study frogs, they heard a cacophony near their campsite. In a puddle that skirted the forest ...

FROM A WINDY SILENCE, the distant calls of night creatures drew nearer; as we climbed into the mist and clouds, they emerged, ...