This Month in Photo of the Day: National Geographic Magazine Features

Tranquil and protective, Zoe cuddles Zizu after nursing him. Male bonobos, unlike chimps, do not form same-sex coalitions to achieve power; from infancy to adulthood, a boy’s best friend is his mother.

See more pictures from the March 2013 feature story "The Left Bank Ape."

Learn about a paradise for bonobos from Christian Ziegler »
Watch a video of bonobos »
Explore the range of the bonobos »