Featured in mercury
Narwhal tusks are full of illuminating secrets
The giant teeth can reveal clues about pollutants in the Narwhal's diet.
Researchers found signs of human pollution in animals living six miles beneath the sea
Sinking fish carcasses ferry mercury to the depths of the Mariana Trench.
Manmade pollutants could be harming marine mammals more than we think
A new study found toxic chemicals in whales and dolphins.
The most incredible pictures of every planet in our solar system
Each and every planet—and one dwarf planet—in our solar system, represented with the single best image ever taken of it. Say hello to our neighbors.
Toxic mercury levels are actually declining in Alaskan polar bears—but that’s not as great as it sounds
It's because they're forced to eat human leftovers.
Fun activities for your next vacation to Mercury
Excerpt: Vacation Guide to the Solar System.
Photos Suggest Mercury Is Actively Shrinking
And still has a hot core
Prenatal Mercury Exposure Cancels Out Cognitive Benefits of Exercise
Blame it on your mom
Peru Declares State Of Emergency Over Mercury Poisonings
The toxic metal is invading the food chain
1,284 New Planets, A New Skin, And Other Amazing Images Of The Week
Plus, the coolest tech in the Marvel Universe