Mojave Desert tortoises are endangered. Before they disappear completely, officials have to do something to protect them.
The desert tortoise, a once-resilient reptile, is a keystone species in the Mojave Desert, where other animals depend for their survival on the burrows it digs. But it is imperiled in California ...
The desert tortoise, a once-resilient reptile, is a keystone species in the Mojave Desert, where other animals depend for their survival on the burrows it digs.