Hicham El Guerrouj is the current men's record holder with his time of 3:43.13, while Svetlana Masterkovahas the women's record of 4:12.56.
It was the first theory of how humans arrived in America. *Kennewick Man
Answer:
They began to meander less, there was less erosion, channels narrowed, more pools formed, more riffle sections, all of which were great for wildlife habitat. The rivers changed in response to the wolves.
hope this helps!!:)
Explanation:
