As part of the Birds exhibit at the National Zoo, this resource highlights various facts and interesting information on the Roseate Spoonbill. The information is brief but does include a picture.

The Smithsonian National Zoo offers a close-up photograph the Grevy's Zebras found at the zoo. Links to a zebra fact sheet and an article written about these zebras are also provided.

There are many interesting facts about the loudest animal in the New World, the black howler monkey, on this informative site.

As part of the Amazonia exhibit at the National Zoo, this site highlights various facts and interesting information on the Armadillo. In addition to several pictures, the site provides a description and information on habitat, diet,...

As part of the Small Mammals exhibit at the National Zoo, this site highlights various facts and interesting information on the Fennec Fox. In addition to several pictures, the site provides a description and information on habitat,...

As part of the Amazonia exhibit at the National Zoo, this site highlights various facts and interesting information on the Black-footed Ferret. In addition to several pictures, the site provides a description and information on habitat,...

As part of the Primates exhibit at the National Zoo, this site highlights various facts and interesting information on the Golden-Headed Lion Tamarin. In addition to several pictures, the site provides a description and information on...

As part of the Amazonia exhibit at the National Zoo, this site highlights various facts and interesting information on the Naked Mole-Rat. In addition to several pictures, the site provides a description and information on habitat, diet,...

As part of the Amazonia exhibit at the National Zoo, this site highlights various facts and interesting information on the Prehensile-tailed Porcupine. In addition to several pictures, the site provides a description and information on...

As part of the Amazonia exhibit at the National Zoo, this site highlights various facts and interesting information on the Prevost's Squirrel. In addition to several pictures, the site provides a description and information on habitat,...

As part of the Amazonia exhibit at the National Zoo, this site highlights various facts and interesting information on the Two-Toed Sloth. In addition to several pictures, the site provides a description and information on habitat, diet,...

This resource offers a three page biography of Greek philosopher and scientist, Aristotle.

The Smithsonian National Zoo offers collection of photos of the animals there.

As part of the Amazonia exhibit at the National Zoo, this site highlights various facts and interesting information on the Rock Cavy, which is closely related to the domestic guinea pig. In addition to several pictures, the site provides...

A very solid history on the evolution of, and function of, the glands that give the group mammals their name. Good comparisons of other mammals and their function.

left to right: Bodil Mimi Krogh Schmidt-Nielsen (b. 1918), Knut Schmidt-Nielsen (1915-2007), and Barbara Wagner. The Schmidt-Nielsens were professors in comparative physiology at Duke University and Wagner was a secretary in the Duke...

Geneticist Mathilde Margarethe Lange (1888-1974?) earned her doctorate in zoology in Zurich, Switzerland, in 1920 and, after returning to the United States, became a professor at Wheaton College, 1921-1950

Libbie Henrietta Hyman (1888-1969) graduated from the University of Chicago in 1910 and earned a Ph.D. degree from Chicago in 1915. She stayed at the university with an appointment as a research assistant until 1931 because, despite her...

Marjorie MacDill Breit (1896-1987) used her undergraduate education in science and a lifelong interest in ecology and zoology to advantage during her journalistic career. She worked as a staff writer for Science Service during the 1920s...

Marie Agnes Hinrichs (b. 1892) received her Ph.D. in zoology from the University of Chicago in 1923. After teaching at the university from 1926 to 1934, Hinrichs received an M.D. from Rush Medical College and joined the faculties at...

Florence Peebles (1874-1956) was a research biologist who taught zoology at Bryn Mawr College, 1897-1919, and later moved to California Christian College, 1928-1942

Helen D. Young was a zoology researcher at Carleton College when this photograph was taken

In 1921, the Marine Biological Laboratory's Biological Bulletin listed Ruth Winkley as a clerk in the laboratory supply department; she graduated from University of Michigan in 1925, where she studied invertebrate zoology. This is...

Aristotle was a Greek philosopher, a student of Plato and teacher of Alexander the Great. He wrote on many subjects, including physics, metaphysics, poetry, theater, music, logic, rhetoric, politics, government, ethics, biology and zoology.