The PBS site covers the Leakey family and their discoveries in Olduvai Gorge in Tanzania. This information was part of a PBS exploration of human evolution.

Explore walking upright, tools and food, bodies, brains, social life, language and how humans ultimately changed the world. Excellent charts, pictures and videos accompany easy-to-understand text on the earliest humans.

See what genetic traits paleontologists have discovered that set humans apart from other organisms.

How far back in time can we date bones or skeletons? How did certain species of man just die off? What was the manner of their communication? These questions and more are answered in this informative essay.

This video segment from Evolution: "Why Sex?" explores the "sweaty T-shirt experiment," which showed that humans may unconsciously be drawn toward a specific kind of genetic variation in a mate.

Read about the PTC gene, and listen to scientists discuss this accidental discovery which lead to important clues about human evolution.

[Free Registration/Login may be required to access all resource tools.] Summarizes the key points about the evolution of agriculture and how it has impacted human population growth. Includes a few questions to check for understanding.

Identify basic trends in the evolutionary history of humans, including walking upright, brain size, jaw size, and tool use.

Read a description of Homo sapiens as a species, learn about the variety of Homo sapiens fossils that have been found, and discover evidence of the culture of these early people.

Physical anthropologists are studying the ongoing evolution of modern humans. This article features research done on those living in high altitudes over thousands of years with the intention to discover things such as the role of natural...

Take a trip back to three million years ago and learn about the different animals and their land that relate to the evolution of man. This article offers a look at the challenges and changes faced by our ancestors and suggests several...

This resource provides graphics, as well as explanation, of the remains of Homo habilis.

This lesson plan requires students to analyze DNA restriction maps to determine the differences in the sequence for several primates and humans. They then use the information to create a cladogram.

This site provides information on the Australopithecus afarensis, a species that is believed to be a human ancestor.

Today, about one-tenth of the world's population are southpaws. Why are such a small proportion of people left-handed -- and why does the trait exist in the first place? The following video investigates how the uneven ratio of lefties...

Determine how studying the evolution of the HIV virus led medical experts to give patients a "holiday" from drugs, weakening the mutated, drug-resistent genes. Discover how this backward evolution works.

This comprehensive essay provides a brief history of the Australopithecines an in depth discussion of the discovery of the early fossils, and a look at the ancestors of the Australopithecines.

With rising temperatures and seas, massive droughts, and changing landscapes, successfully adapting to climate change is increasingly important. For humans, this can mean using technology to find solutions. But for some plants and...

A shoulder blade was recently discovered that belonged to a 3-year-old humanlike female who lived more than 3 million years ago. Scientists are studying the fossil to learn whether the creature climbed trees.

Plants give us insight into the past, sustain the present, and prepare for the future. Peruse the article to appreciate the value of angiosperms.

This video segment from NOVA: "Cracking the Code of Life" explores the genetic similarities and differences among organisms.

Farnaz Khatibi Jafari traces the evolution of how humanity has treated bodies and burials. [4:41]

View a diagram of the hominid footprints that archaeologist Mary Leakey's team found at Laetoli in Tanzania.

This digital textbook covers core life science concepts and includes interactive features, real-world examples, and videos.