The Enduring Mysteries of the Narwhal’s Tusk
Why don't we know what narwhals' tusks are for? New footage suggests they use the tusks to stun fish before eating then, but some mysteries remain.
Why Do Whales Strand Themselves?
In huge pods, small groups, or as individuals, whales routinely find themselves aground or stuck in shallow water. But why do strandings happen?
The Global Jellyfish Crisis in Perspective
Are the increasing jellyfish blooms in our oceans the result of global temperature changes?
Could Climate Change Alter the Ocean’s Currents?
What do currents do anyway? What would happen if they stopped?
Giant Squid, Giant Secrets
Very little is known about the giant squid, which surely has added to the strange creature's mystique.
The Glowing Mystery of Bioluminescence
Bioluminescence, an animal's ability to create and use light, exists exclusively in the lower branches of the tree of life.
The Mother of Ocean Floor Cartography
Marie Tharp's contribution to ocean-floor mapping and the acceptance of plate tectonics wasn't recognized at the time.
Sea Level Rise Is Already Here
For the 44% of the world's population that lives near the coastline, global climate change is no longer abstract.
Slow, Steady, and Very, Very, Very Old
Why do Greenland Sharks and Pacific Rockfish live for hundreds and hundreds of years?
Can Virtual Reality Emerge as a Tool for Conservation?
New advances in technology are sparking efforts to use virtual reality to help people gain a deeper appreciation of environmental challenges.