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第3058节（第152851-152900行） (3058/3207)
theory
to
explain
human
movements—and
the
one
still
accepted
by
themajority
of
people
in
the
field—is
that
humans
dispersed
across
eurasia
in
two
waves.
thefirst
wave
consisted
of
homo
erectus,
who
left
africa
remarkably
quickly—almost
as
soon
asthey
emerged
as
a
species—beginning
nearly
two
million
years
ago.
over
time,
as