then people would cry :( because everyone loves dolphins
What would happen next if sagebrush is disappeared frrom a desert?
You would die.
You would die.
Dolphins would go extinct.
if the oxygen
Everything would die
There would be no bees to pollenate the flowers.
This cannot possibly happen, so asking what would happen if it did happen is an exercise in stupidity.
Nothing major would happen. Dolphins are not an extremely important part of society. Sure, sea worlds wouldn't be as fun, but nothing major would happen.
The same thing that would happen to humans if we had no food.
life would follow