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			Hybrid sharks aren't "trying" to adapt - February 2012 Last month, biologists announced the discovery of hybrid sharks in Australian waters. The new sharks may not warrant a marine park attraction — they look much like their closely-related parent species — but do represent an unexpected twist of biology and evolution. This is the first time that scientists have found evidence of shark hybridization — an event that was thought to be rare because, unlike the many fish that simply release eggs and sperm into the water, sharks mate. Clearly, though, the widely-distributed common blacktip shark and the Australian blacktip shark (which is restricted to northern and eastern Australia) have few qualms about each other: 57 apparently healthy hybrid individuals were discovered in the first investigation of these animals. What does this mean for the future evolution of blacktip sharks? Read the rest of the story | See the Evo in the News archive

How to survive a mass extinction: The work of David Jablonski David Jablonski researches how patterns of evolution relate to mass extinctions. Why are some species doomed while others survive?		Why the eye? Eyes are clearly incredibly useful, but where did the eye come from? How did so many animals evolve eyes and why do they look so different? This case study answers these questions.
Using trees to understand plants: The work of Chelsea Specht This research profile examines how the scientist Chelsea Specht studies plant evolution in order to understand the basis of diversity.		Biological warfare and the coevolutionary arms race Dr. Edmund D. Brodie, Jr. explores the ten-thousand year evolutionary battle between toxic newts and the snakes who dine on them.