At first glance, these marine mammals seem virtually identical. But take a closer look and you’ll see that the differences between seals vs. sea lions really do stack up.

WATER
Discover the hidden rivers buried beneath cities around the world. From Moscow to Tokyo, explore the history and modern efforts to reopen these forgotten waterways.
Explore the role of these weather systems in transporting moisture from the tropics and spreading it worldwide.
Glugging tap water on a plane is a terrible idea.
The residents of Bayou Corne, Louisiana, woke up one morning in 2012 and found a gigantic sinkhole devouring their town.
If you've always wanted to live in a lighthouse, now is your chance.
Pranksters claim putting someone’s hand in warm water while they sleep will make them wet the bed. Does this actually work?
Once you’ve learned a few key things about your garden, you’ll know how often you should grab a hose and start watering.
Going for a dip? You'll probably have a wee bit of trouble. Here's why.
Slime mold definitely had a moment—but it’s hard to beat two dead salamanders floating in a carnivorous plant.
Deep Dive Dubai plunges 197 feet beneath ground level and holds 14 million liters of water.
“It just tastes funny” is only part of the difference between hard water vs. soft water.
Every spring, hundreds of icebergs drift by the waters of Newfoundland and Labrador, Canada.