Koalas’ survival under threat from disease to bushfires and urban encroachment of their habitat.
A decades-long Soviet-era experiment in Siberia might offer a window into human evolution.
Decades of severe drought and climate change are drying the lifeblood of Navajo ranchers.
While arrests and prosecutions are up in Vietnam, conservationists warn the scourge of trafficking continues.
China lifted over 800 million people out of poverty over 40 years. For the relocated, the transition has been difficult.