Not exact matches
Most of their bouts lasted less
than 60 seconds, whereas the mother - reared
chimpanzees were more
likely to play for a few minutes at a time.
The results showed that even though this hominid's brain was no larger
than a
chimpanzee's, it most
likely walked upright like modern humans.
Humans and
chimpanzees, for instance, have slightly different versions of the hepatitis B virus, both of which
likely mutated from a version that infected their shared ancestor more
than four million years ago.