Featured series 
Tag: Hopi E. Hoekstra
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Campus & Community
A pioneering geneticist and Renaissance man of parts
Colleagues and friends remember Richard Lewontin as whip-smart, a fierce debater, and an engaged and loyal mentor and friend.
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Health
Sperm competition, cooperation
Some mouse sperm can discriminate between their brethren and the competing sperm from other males, showing an unusual behavioral complexity.
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Health
Venomous bite
Biologists have shown that independent but similar molecular changes turned a harmless digestive enzyme into a toxin in two unrelated species — a shrew and a lizard, giving each a venomous bite
