A similar disorganized attachment can occur in captive chimpanzees, particularly orphans who are raised by humans. A lack of a permanent caregiver can lead to this more fearful behavior. However, in ...

On the genetic level, we're not all that different from chimps. But those small differences in dna can have massive effects.

A seven-million-year-old skull found in Chad sits at the center of a long argument about human origins. The species, ...

An experimental study of modern chimpanzees has documented patterns of behavior that seemingly mirror those of our prehistoric human ancestors, casting light on how our predecessors may have utilized ...

This has been quite the wild year in human evolution stories. Our relatives, living and extinct, got a lot of attention—from ...

Humans are not the only species to combine concepts to build more complex meaning, a new study found. Bonobo chimpanzees combine calls in a manner similar to how humans structure words to make phrases ...

Lucy the Chimpanzee’s story is an animal rights nightmare. As told in the new documentary Lucy the Human Chimp, psychologist Maurice Temerlin and his wife, Jane, bought the fuzzy primate from a ...

A groundbreaking ten-year study on the behavior of chimpanzees, reported in the journal Current Biology, reveals that humanity's closest living relative expresses a propensity for human-like warfare.

Most of the muscles of your foot let you point your toes down, like when you stand on tiptoes, or lift them up, like when you ...

Researchers at the University of College London recently undertook a massive study to better understand chimps. The team analyzed data from fecal samples of 828 wild chimpanzees across 30 populations, ...

If you've had an annual checkup recently, your doctor probably ran a blood test to look at things such as your cholesterol levels. Researchers are also interested in the levels of cholesterol and ...

Twenty-five years after the film's release, the chimps from "MVP" feel the lingering effects of a life in show business. Kelsea Petersen / The Athletic; Tim DiFrisco / Getty, Tom Pidgeon / Getty ...