slideshow

Endangered Ocean Animals

The Endangered Species Act (ESA) was signed into law on December 28, 1973 by...

Photo

Elevator Rudists

These "elevator" rudists, an ancient bivalve, used one long heavy valve to anchor...

Article

Flippers or Feet? An Extinct Mammal May Have Been Replaced By Today's Sea Cows

In the seagrass beds and kelp forests of the Oligocene-Miocene transition, nearly...

Personal Perspectives

Whale fossils on the mainland, and into a CT scanner

After a few long days of hard work on the island, we were finally able to excavate...

video

Excavating an Extinct Toothed Whale

A time-lapse video shows researchers from the Smithsonian's National Museum of...

Photo

Carbonate Reef (Cretaceous Period: 145 - 65 Million Years Ago)

This illustration shows the edge of a warm inland sea during the Cretaceous Period,...