Science

In Elkhorn Slough, an inlet on the California coast, seagrass grows healthy and strong in the shallow water, providing homes for fish, preventing erosion, and trapping carbon from the environment.

This healthy seagrass baffled marine biologist Brent Hughes. Water in the slough is chock-full of nutrients from fertilizer runoff on nearby farms. Normally, nutrient-polluted water supports huge population of algae that block sunlight from reaching the seagrass, and the seagrass dies. Why has the slough's seagrass thriving?

Because it is home to anacondas weighing over three hundred pounds, Goliath birdeater tarantulas with a leg span the size of your face, and electric eels who have enough voltage to stun a horse, you might think the Amazon is a place that can cause more harm than good. But you'd be wrong...

Considered the "lungs of the world," the Amazon provides a full fifth of the world's oxygen, and every year unsustainable human practices destroy 2.7 million acres of it. What can be done to help? That's where Project Piaba comes in.

The Siberian tiger, the great white shark, and many other present-day apex predators are powerful and deadly. But in the past there were even more lethal killers - animals that stalked their prey thousands or millions of years ago.

Simon Winchester is an avid weather watcher. He’s scanned the skies in Oklahoma, waiting for the ominous “finger” of a tornado to touch the Earth. He’s hunkered down in Hong Kong when typhoon warning signals went up. He’s visited the world’s hottest and wettest places, reported on fierce whirlpools, and sailed around South Africa looking for freak winds and waves.

He knows about the worst weather in the world.

How well do you know our favorite furry companion? Did they really descend from wolves? What's the difference between a Chihuahua and a Saint Bernard? And just how smart are they? Join one friendly mutt on a journey to discover the secret origin of dogs, how genetics and evolution shape species, and where in the world his favorite ball bounced off to.

Dive into the fascinating world of dolphins in the spiritual and scientific exploration of the beloved sea creatures. Inspired by an encounter with a pod of spinner dolphins off the coast of Maui, author Susan Casey embarked on a two-year global adventure to study these remarkable beings.

Asteroids bombard our atmosphere all the time. Some are harmless, burning up completely in a flash of light, or breaking into bits of rock that scatter on the earth. But others explode in the sky with a great sonic boom, smashing windows and throwing people to the ground. Worst of all, some asteroids strike our planet head-on, blasting out massive craters and destroying everything nearby on impact.