03 - Struggle for Existence

Clover

Charles Darwin says the clover surrounds the villages
while the wastelands have much less of it.

In villages, there are people.
People don't like mice, so they keep cats.
Less mice eat less of the bee combs.
More bees means more fertilization of the clover.

Darwin gives this as a simplified example to show that
the relationships in Nature are very complex.

It is difficult to change the environment and have predictable results.

03 - Struggle for Existence