In the 5-7 million years that the hominid lineage has been diverging from its common ancestor with the great apes, dozens of hominid species have arisen, often with several species coexisting in time and space. As recently as 30,000 years ago, Homo sapiens coexisted with Homo neanderthalensis. Both species had large brains and advanced intellects. The fact that these traits were common to both species is most easily explained by which of the following?
A) species selection
B) uniformitarianism
C) sexual selection
D) convergent evolution
Evolutionary change in the tetrapod lineage, showing a transitional form.
Distribution of glaciers in North America (a) in the late twentieth century, and (b) 18,000 years ag
Possible Earth 5 billion years from now
The apples of today are larger and sweeter than their ancestors, thanks to hundreds of years
Nick buys a $25 000, 5.4% bond with quarterly interest coupons, 3 years before maturity, to ...
Earth 340 Million Years Ago