Zoos are miserable places. But if held accountable, they could be a force for good.

A biotech firm wants to resurrect the Pleistocene mammal in Alaska—and it’s not clear the U.S. government can stop them.

Naturally, Peter Thiel is an investor in the company that came up with the idea.

Bil Zelman's photos confront viewers with the unvarnished, immediate reality of climate and habitat disruption.