Photographic Memory

Photographic Memory

How does the quality of photographs influence our relationship with the past? Plus photographs of the final years of the Russian Empire in vivid color.

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Q&A with Primatologist John Mitani

Dr. John Mitani, a primatologist at the University of Michigan, answers questions about his research on lethal chimpanzee aggression.

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Chimpanzee Warfare?

Chimpanzee Warfare?

Observations of a group of chimpanzees in Kibale National Park in Kenya show that chimpanzees kill their neighbors to gain dominance and land. What does this tell us about human warfare?

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DNA Reveals the Story of a Mysterious Group of Ancient Humans

DNA Reveals the Story of a Mysterious Group of Ancient Humans

Analysis of DNA extracted from an ancient finger bone points to the existence of a previously unknown type of ancient human that was genetically different from both Neanderthals and modern humans.

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Witchcraft or Psychedelic Trip?

Witchcraft or Psychedelic Trip?

Were the Salem Witch Trials sparked by toxic hallucinogens?

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