Primer Primers provide a concise introduction into an important aspect of biology highlighted by a current PLOS Biology research article.

See all article types »

With a Little Help from a Friend

  • Frans B. M de Waal
  • Published: July 17, 2007
  • DOI: 10.1371/journal.pbio.0050190

Media Coverage of this Article

Found additional news media or blog coverage for the article? Please let us know.

Linked Articles

Spontaneous Altruism by Chimpanzees and Young Children

Felix Warneken, Brian Hare, Alicia P Melis, Daniel Hanus, Michael Tomasello
Research Article | published 26 Jun 2007 | PLOS Biology