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Examples of evolution


Aloha - spider style!
This research profile follows Dr. Rosemary Gillespie to Hawaii as she evaluates hypotheses about the evolution of the colorful happy-face spider.

Angling for evolutionary answers: The work of David O. Conover
Human activity has certainly affected our physical environment - but it is also changing the course of evolution. This research profile follows scientist David O. Conover as he investigates the impact of our fishing practices on fish evolution and discovers what happened to the big ones that got away.

Biological warfare and the coevolutionary arms race  Advanced
The rough-skinned newt looks harmless enought but is, in fact, packed full of one of the most potent neurotoxins known to man. Find out how an evolutionary arms race has pushed these mild-mannered critters to the extremes of toxicity and how evolutionary biologists have unraveled their fascinating story.

Comic strip: Survival of the sneakiest  Great for students
This comic follows the efforts of a male cricket as he tries to attract a mate, and in the process, debunks common myths about what it means to be evolutionarily "fit."

Fire ants invade and evolve  Advanced
Understanding the evolution of fire ants may help scientists control the spread of these pests, which have already taken over much of the U.S.!

Interactive investigation: The arthropod story  Great for students
This interactive investigation delves into the amazing world of the arthropods and examines their success and their evolutionary constraints.

It takes teamwork: How endosymbiosis changed life on Earth  Advanced
You might be surprised to learn that descendents of an ancient bacterium are living in every cell of your body! Find out how endosymbiosis factored into the evolution of your own cells.

Mantis shrimp shoulder their evolutionary baggage and bluff
Like all organisms, mantis shrimp carry baggage from their evolutionary history. Find out how this baggage has coaxed them into a deadly bluffing game.

Origin of modern humans: Multiregional or out of Africa?  Advanced
Learn more about your own history from paleoanthropologist Donald Johanson. He describes how and when early humans evolved, Homo sapiens’ ancestors and relatives, and the diverse lines of evidence relating to this history.
This article appears at ActionBioscience.org.

Webcast: Selection in action  Advanced
In lecture two of a four part series, evolutionary biologist David Kingsley discusses how just a few small genetic changes can have a big effect on morphology, using examples from maize, dog breeding, and stickleback fish.
This lecture is available from Howard Hughes' BioInteractive website.

Adaptation: The case of penguins
The process of natural selection produces stunning adaptations. Learn about the history of this concept, while you explore the incredible adaptations that penguins have evolved, allowing them to survive and reproduce in a climate that reaches -60°C!
This article appears at Visionlearning.

Evo in the news: Evolution down under
This news brief, from September of 2008, describes an unusual contagious cancer currently decimating Tasmanian devil populations. Learn about the fascinating interplay between the evolution of the devils and the evolution of the disease.

Evo in the news: Got lactase?  Advanced
The ability to digest milk is a recent evolutionary innovation that has spread through some human populations. This news brief from April 2007 describes how evolution has allowed different human populations to take advantage of the nutritional possibilities of dairying.

Evo in the news: Musseling in on evolution
This news brief, from September 2006, reviews a recent case of evolution in action. In just 15 years, mussels have evolved in response to an invasive crab species. Find out how biologists uncovered this example of evolution on double time.

Evo in the news: Sex, speciation, and fishy physics  Advanced
More than 500 species of cichlid fish inhabit Africa's Lake Victoria. This news brief from March 2009 explains new research suggesting that the physics of light may have played an important role in cichlid diversification and in the recent drop in their diversity.

Evo in the news: The other green (r)evolution
Though corn is "all-natural" in some ways, in others it is entirely manmade. This news brief from February 2007 explains the evolutionary tools that ancient humans used to engineer modern corn and the tools that scientists are using today to reconstruct corn's evolutionary history.

Evo in the news: Warming to evolution
Global warming increasingly affects many aspects of our environment—from the sea level to tropical storm strength. But that’s far from the full story. This news brief from July 2006 describes how global warming has already begun to affect the evolution of several species on Earth.

The Monterey Pine through geologic time  Advanced
Understanding the evolutionary history of the Monterey Pine may help us conserve this species.