A look inside the illegal turtle and tortoise trade operating through the world’s busiest land border crossing — and the enforcement vacuum making it possible.

A philosopher tells an environmental success story that speaks to the moral necessity of ongoing work for wild beings.

Nearly half of all stopover sites used by migrating birds in North America fall within urban areas.

Traumatized, orphaned gibbon babies are stuffed into luggage and smuggled by air from southeast Asia to India.

“They are like our children now,” says one of the villagers helping to save critically endangered Asian giant tortoises.

Illegal trade in rare ornamental plants is booming — fueled by weak enforcement and a changing climate. But the theft of 1,000 cacti from the Chilean desert has led to a landmark court case in Italy.

The world depends on healthy insect populations. As climate change and other threats cause their declines, simple actions can give them a much-needed boost.

“This is a dangerous argument they are making. Dangerous not just to the Florida scrub jay, but to a lot of endangered species.”

Tracking this small population of big birds is revealing potentially significant changes in their habits.

Conservation crews have helped plant and seed thousands of native trees and other vegetation. Salmon have responded in kind.