On another planet, in the year 2010, they are looking at Earth and watching George Washington cross the Delaware River in 1776. How many light years away is this planet from Earth?

He used pea plants to study the patterns of heredity.

Many archeologists and anthropologists disagree with dr. thorne's view.  thorne strongly believes that what many calls "homo erectus"  was in fact  homo sapiens,  and that they migrated out of africa almost 2 million years ago and dispersed throughout europe and asia. that's way different  from what scientists have always believed about the evolution of the species.