For over 350 million years, thousands of species of amphibians have lived on
earth, but since the 1990s they have been disappearing at an alarming rate, in
many cases quite suddenly and mysteriously. What is causing these extinctions?
What role do human actions play in them? What do they tell us about the overall
state of biodiversity on the planet? In Extinction in Our Times, James Collins
and Martha Crump explore these pressing questions and many others as they
document the first modern extinction event across an entire vertebrate class,
using global examples that range from the Sierra Nevada of California to the
rainforests of Costa Rica