To understand the barriers endangered species face when trying to traverse their habitat, it helps to think of their environment like an electrical circuit board.

But with chimps now endangered, we risk losing their forest-rebuilding abilities.

From June through October, it's not unusual for huge Saharan dust plumes to blow across the Atlantic. They can darken skies but also bring calmer weather and electric sunsets. Here's how they form.

Massive study looked at more than half a million trees in 813 forests across the tropics.

“People have been arguing about whether these long-lived pioneers contribute much to carbon storage... We were surprised to find that they do."

A tiny termite might see an elephant's foot as a threat but losing herbivores to hunting may cause even more problems for them.

As thousands of fires still rage in the Amazon, experts explain what started the fires, what could stop them, and why the Amazon matters so much.