Hear from the driving force behind the restoration of the Mesopotamian Marshes.

As Iraq's destroyed marshland returns, so do the people and wildlife who have inhabited it for generations.

Here's proof that a Burmese python, depending on the size, can devour an alligator whole.

What does it look like inside the belly of a Burmese python as it digests a rat? X-ray images reveal that it's a surprisingly fast process.

What is it like to work on the front lines of the invasive Burmese python problem? Listen to these python experts tell their stories in their own words.

See photos of crows in various stages of development, taking intelligence tests around the world.

Learn more about the Amboseli Trust for Elephants team, and read an interview with the AERP Deputy Director.

View additional resources online and in print for NATURE's "Echo: An Elephant to Remember."

Elephant social rules are very complex. Females dwell in tightly bonded families that stay together for life, and males live a largely solitary existence.