Paleontologists have discovered several ancestors of
the modern horse.
Based on the skeleton, the skull, and the leg bones,
which fossil is the oldest?.
Which fossil is most like a modern horse?.

Name one type of data that h-r diagrams do not show.

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)

Wegeners theory of continental drift states that the continents have changed throughout history while the theory of plate tectonics