slideshow

X-Rays of Fish Reveal Diversity

Scientists in the Division of Fishes at the Smithsonian's National Museum of...

Photo

Lacy Crust Bryozoan

This colony of a lacy crust bryozoan (Membranipora membranacea) started off as just...

Photo

Psychedelic Tardigrade

Tardigrades, which are usually less than 1 mm long, can be found in almost every...

Photo

X-Ray Image of a Monterey Skate

An X-ray image of a Monterey skate (Raja montereyensis) reveals a spine that...

Photo

X-Ray Image of a Winghead Shark

The distinctive form of a winghead shark (Eusphyra blochii) is revealed by an X-ray...

Personal Perspectives

Microbes Help Corals Pick a Home and Settle Down

Bacteria are everywhere in the ocean. They live in the water, on virtually every...

slideshow

Image Gallery: The Perfect Underwater Photo

For nearly 35 years, National Geographic photojournalist Brian Skerry has been...

Personal Perspectives

Swimming With Sharks

Lying in water only a foot deep, I watched the shark meander lazily through the...

slideshow

Image Gallery: Swimming with Sharks

For nearly 30 years, National Geographic photojournalist Brian Skerry has been...