Learn about the body structure, habitat, reproduction, movement, and evolution of extreme mammals, both extinct and living, through interative animation and short videos.

Flip over this interactive OLogy card and start learning bite-size pieces of useful information about the marine life that lives in polar-sea regions.

Discover how, where, and when dinosaurs lived millions of years ago by engaging in interactive games, viewing 3D images, or taking a quiz.

How many fish species are there? What is the world's largest and smallest fish? How long do fish live? How is the age of fish determined? You will find answers to these and other questions in this interesting site.

Information about the Humphead, or Napoleon, Wrasse, accompanied by several photographs and a map showing where these fish live.

Quetzalcoatlus northropi was a carnivorous pterosaur larger than an African elephant. It lived during the Cretaceous Period. Some information and pictures can be found here.

Pteranodon sternbergi was a prehistoric flying reptile that lived during the Cretaceous Period. Some information and pictures can be found here.

Varanus priscus was a prehistoric lizard that lived in Australia in the Pleistocene Period. Some information and pictures can be found here.

Inostrancevia alexandri was a prehistoric animal with mammal-like characteristics that lived in the Permian Period and before the dinosaurs. Some information and pictures can be found here.

Genyornis newtoni was a gigantic, non-flying bird that lived in Australia during the Pleistocene Period. It is sometimes referred to as a 'thunder bird' due to its large size. Some information and pictures can be found here.

Diprotodon optatum was a prehistoric marsupial from Australia that lived during the Pleistocene Period. The wombat and the koala are descendants. Some information and pictures can be found here.

Anhanguera blittersdorffi was a carnivorous pterosaur that lived during the Cretaceous Period. Some information and pictures can be found here.

Talarurus plicatospineus was an herbivorous ankylosaur from Mongolia that lived during the Late Cretaceous Period. Some information and pictures can be found here.

Amargasaurus cazaui was an herbivorous sauropod first found in Argentina. It lived during the Early Cretaceous Period. Some information and pictures can be found here.

Improve your science teaching by taking this multi-part course that gives in-depth information about what science is, how it works, and how it is intertwined with our lives and with society more broadly. The course is broken up into...

This important online exhibit, "The Power of Children", discusses the lives of three children who faced almost unbearable challenges and become heroes of the 20th century. This page tells the story of Ryan White and his fight against AIDS.

Learn about the life and works of Harlem Renaissance poet Anne Spencer who lived her entire life in Virginia and fought for equal rights for African Americans.

One of the earliest peoples living in the Southwest of present day America were the Chaco, also called the Anasazi. Learn about their history and culture and the great contributions made by this civilization, view preserved artifacts and...

This site describes the museum. It shows the viewer what is currently on exhibit, interesting facts, and many links to other exhibits.

Replica of the Salisbury, North Carolina railway station teaches about riding and working on the railroad in the 1920s when railroads were a central part of American life. Railroad lines crisscrossed the country. They carried people,...

This terrific site from the National Museum of Natural History gives general information about the Burgess Shale and the fossils found within. Use the links to go the Burgess Shale specimens page where there are drawings of many of the...

This booklet was written by Kenneth Carpenter from the Denver Museum of Natural History. It looks at the Jurassic dinosaurs that lived in Garden Park, Colorado. These included carnivorous dinosaurs, thunder lizards, Ornithopods, and...

Online exhibition of presidential campaign ads, 1952-2008, organized by election year, theme, and political issue. Audio/video presentations of ads can be viewed alongside written transcripts, making Living Room Candidate particularly...

American cities in the 19th century were walking cities-most residents worked and shopped close to where they lived. But as electric streetcar (trolley) systems were built in the 1880s, 1890s, and early 1900s, cities expanded. Many white...