According to the traditional hypothesis, the first humans to inhabit North America came across a land bridge between northeast Asia and Alaska approximately 12,000 years ago. But a group of archaeologists now theorizes that some humans arrived in Baja California approximately 13,500 years ago. This hypothesis must be false, however, because the oldest human fossil remains that have been found in North America are only 12,000 years old.
The argument above assumes that:
A. There will be no new
...
The argument above assumes that:
A. There will be no new
...
