Question

What would happen if there were no tides? What effect would it have on the oceans and marine ecosystems? Would it affect human beings at all?

Answer 1

Tides churn up material in the oceans, which allows coastal ecosystems to thrive. Animals in these environments – crabs, mussels, starfish, snails – rely on the tides for survival. Without a coastal ecosystem, this could have knock-on effects for other land and sea animals and could lead to mass extinctions.