How does the spin of the Earth affect its lifeforms?
Life could not exist on the earth if it did not spin because the side of the earth facing the sun would be extremely hot, the other side extremely cold. There would be no day and night. One side would have a perpetual day, the other a perpetual night. There would be no tides (that work in conjunction with the moon) and a lot of life is connected with the tidal movement. The tides result from the moon’s gravitational pull on the side of the earth closest to the moon, creating a rise and fall of ocean water as the earth rotates. There would be radical wind, weather and ocean current changes if the earth did not spin: Coriolis effect is the tendency for any moving body on or above the earth’s surface, e.g., an ocean current or an artillery round, to drift sideways from its course because of the earth’s rotation. In the Northern Hemisphere the deflection is to the right of the motion; in the Southern Hemisphere it is to the left. The Coriolis deflection of a body moving toward the north or