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Squalicorax shark fossil from the Smithsonian
Photo

Squalicorax Shark Fossil

During the late Cretaceous period, Kansas was covered by a vast sea. There,...
A fossil of the ancient shark Falcatus falcatus
Photo

The Ancient Shark Falcatus falcatus

The foot-long extinct shark Falcatus falcatus lived during the early Carboniferous...
A close up of a sediment core.
Photo

Sediment Core Close-Up

These deep-sea sediment cores were drilled from beneath the seafloor, and hold...
400 to 1,000 year old bones from an endangered seabird, the Hawaiian petrel. Bones such as these provide a window into the lives of seabirds before and after human arrival in the open ocean environments of the North Pacific.
Photo

Petrel Bones Help Us Understand History

400 to 1,000 year old bones from an endangered seabird, the Hawaiian petrel. Bones...
This purple urchin Paleopneustes cristatus is seldom seen by itself, and can be found in groups of hundreds.
Photo

Purple Sea Urchin

This purple urchin Paleopneustes cristatus is seldom seen by itself, and...
An unidentified moray eel held in researcher's hands.
Photo

A Baby Moray Eel, or a Really Small Adult?

This is an unidentified moray eel, collected from 650 feet off the coast of...
dugong feeds on seagrass in the Red Sea
Photo

Dugong Feeding

Dugongs, along with manatees, make up a group of marine mammals called sirenians or...
paleobiology field equipment for excavating a fossil whale in central america
Photo

Equipment for a Fossil Excavation

Paleobiologist Dr. Nicholas Pyenson, Curator of Fossil Marine Mammals for the...
Smithsonian zoologist Dr. Steve Cairns named and described this deep-sea coral species, Stephanocyathus paliferus, now preserved at the National Museum of Natural History.
Photo

Corals at the Smithsonian

Smithsonian zoologist Dr. Steve Cairns named and described this deep-sea coral...
Hedbergella sliteri - this specific specimen is the "holotype" for this species. That means it is the reference point for what all members of the species should look like.
Photo

Hedbergella sliteri

Hedbergella sliteri - this specific specimen is the "holotype" for this species....
Dr. Valerie Paul, director of the Smithsonian Marine Station at Fort Pierce, Fla., examines tropical seaweeds on northwestern Guam’s coral reefs.
Photo

Diving in Guam

Dr. Valerie Paul is studying chemical defenses that may protect coral reefs from...
Dr. Stephen Cairns, a Smithsonian research zoologist, studies deep-water corals.
Photo

Dr. Stephen Cairns

Dr. Stephen Cairns is a research zoologist and chair of the Department of...

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