By engineering mutations into fruit flies, scientists reconstructed how the bright orange butterflies came to tolerate milkweed toxins -- Read more on ScientificAmerican.com
Chagnon’s views of the “fierce” Yanomamö and of the roots of war were more subtle than his critics or admirers suggested -- Read more on ScientificAmerican.com
At 466 million years ago, the breakup of a large space rock may have led to major changes in our planet’s biodiversity -- Read more on ScientificAmerican.com
Homo erectus used hand axes to butcher elephants and other game. But a new study suggests they also used finer, more sophisticated blades. Christopher Intagliata reports. -- Read more on ScientificAmerican.com