The Mating Game

This interactive feature from the Evolution Web site takes a lighthearted but informative look at some of the strategies various organisms use to reproduce.

Microbe Clock

In this Evolution Web feature, learn how mutation and fast reproductive rates can allow deadly microbes to outpace medical breakthroughs.

Mike Novacek: Fossils in the Gobi

Biologist Mike Novacek discusses his discovery of mammal fossils in the Gobi Desert and what we can learn from them. From Evolution: "Extinction!"

Mimicry: The Orchid and the Bee

In this photograph from Oxford Scientific Films, a horned bee attempts to mate with an Ophrys orchid, which has evolved to resemble a female bee.

Molecular Clocks: Proteins That Evolve at Different Rates

From The Human Evolution Coloring Book by Adrienne Zihlman, four different proteins from humans and horses are compared in this graphic and article, and the reasons each protein evolves at its own characteristic rate are discussed. Each protein is useful for measuring evolutionary change over a different time scale.

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A Mutation Story

This video segment describes the role of the sickle cell gene in natural selection. Footage courtesy of the PBS series Secret of Life: "Accidents of Creation."

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An Origin of Species

In this Evolution Web feature, witness for yourself how a new species can evolve as you observe natural selection and adaptive radiation in action.

Permian-Triassic Extinction

In this video segment from Evolution: "Extinction!", geologist Peter Ward discusses evidence for a Permian-Triassic mass extinction.

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Pink Dolphins of the Amazon

This video resource from Jean-Michel Cousteau: Ocean Adventures explores the unique adaptations developed by the pink river dolphin in order to survive in the freshwater rivers of the Amazon.

The Red Queen

An example of the Red Queen hypothesis, the sexual population of Mexican Poeciliid fish are able to keep up with a changing environment, while the asexual populations are not as successful. From Evolution: "Why Sex?"

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Regulating Genes

In this interactive activity from NOVA, learn the mechanisms that determine how genetic mutations influence an organism's development.

The Reproductive Role of Flowers

In this video segment adapted from NOVA, learn about the critical role of flowers in seed plant reproductive biology.

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The Reverse Evolution Machine

Dr. David Haussler has created a new method of detecting dinosaur DNA, called ”computational genomics.” In this video from QUEST produced by KQED, learn about this innovative way of discovering dinosaur DNA.

Riddle of the Bones

In this Evolution Web feature, piece together clues to how one of our early ancestors looked as you examine images from four significant fossil finds of Australopithecus afarensis.

Saving the World’s Potatoes

This audio segment from PRI's The World Science Podcast explores the extraordinary variety of potatoes native to the Andes in South America, and the current mission to protect this biodiversity.

Sex and the Single Guppy

Play in our streams and see how exhibitionism has an evolutionary payoff in this Evolution simulation of Endler's experiment.

Shape of Trees: The Frustration Principle

This series of images shows the work of biologist Karl Niklas on the adaptations and evolution of plants. From The Evolutionary Biology of Plants.

Switching Genes On and Off

This video segment adapted from NOVA reveals how "junk" DNA helped solve an evolutionary mystery: Why do certain species of fruit flies have wing spots while others don't?

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Tale of the Peacock

The peacock provides a classic example of sexual selection, the force behind nature's extravagances. From Evolution: "Why Sex?"

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Teaching Evolution Case Studies: Bonnie Chen

Bonnie Chen builds on students' prior knowledge of mutations to lead her class through a simulation of wading birds feeding.

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