This site, which is provided for by the University of St Andrews, gives a factual description of Leonhard Euler's life and accomplishments.

This in depth site provides factual information on the following topics: size, physical characteristics, food, gender, habitat, herding, locomotion, reproduction, range, and predators. Links are provided for those interested in learning...

This site provides a short but factual description of active transport. An animation displaying the process of active transport is also provided.

This interesting site provides an abundance of factual information on ostriches. Topics include physical characteristics, diet, and life cycle.

This site from the United Nations Educational, Scientific and Cultural Organization provides a brief description of why Arles is a World Cultural Heritage site, with a photo. This is a brief, but factual site on the subject.

This site from ScienceWorld provides a very brief but factual description of alkynes, and describes the differences between alkynes and alkenes.

This site provides detailed descriptions and factual information on Wisconsin's Threatened and Endangered animals and plants.

This detailed site contains a wealth of factual information about the Red-shouldered Hawk. Topics include: cool facts, description, range, habitat, food, behavior, reproduction, and conservation status. Sounds of this species can be...

Delve into an abundance of factual information, photos, and sounds of the Anhinga on this thorough site. Topics highlighted are: cool facts, description, similar species, range, and other names.

This detailed site contains a wealth of factual information about the largest flying bird in North America. Topics include: cool facts, description, range, habitat, food, behavior, reproduction and conservation status. In addition, the...

Factual information is provided on the following topics: geographic range, habitat, physical description, reproduction, behavior, diet, economic importance, and conservation status.