More Praise for Earthworms

"Where there's a healthy earthworm population, there will be 1000 miles of burrows per acre, she continues.

"Fields with earthworm tunnels absorb water at a rate of 4-10 times that of fields without worm tunnels."

Worms also act as a biological filter, she maintains.

"They line their burrows with mucus which absorbs any pollutants, such as nitrates and pesticides, which are in the water. "

Earthworms help prevent erosion