No Grumpy Old Men in the Chimp World – The New York Times
Science News No Grumpy Old Men in the Chimp World The New York Times How’d we get so picky about friendship late in life? Ask the chimps Phys.org Chimps pare down their social circle in later years – study The Guardian What chimps can teach us about changing human friendships Inverse Like humans, male chimps mellow with age Science Magazine […]
