slideshow

Under Arctic Ice

Hidden beneath Arctic ice is a world few have ever seen. Take the icy plunge with a...

Photo

Narwhal Anatomy

Photo

Amphipod Under Arctic Sea Ice

Several species of amphipod like this one, Gammarus wilkitzkii, live permanently...

audio

Sea Slugs: One Species at a Time

Come one, come all! See the amazing, the astonishing, half-animal, half-plant!...

Article

Why a Tusk? The real-life unicorns of the sea and the tusks that make them famous

In the frigid Arctic Ocean, a mysterious toothed whale—the narwhal— resides...