Lions, wolves, and vultures don't live together in herds, droves or flocks. Of all animals of prey, man is the only sociable one. Every one of us preys upon his neighbor, and yet we herd together.
If you have anything really valuable to contribute to the world it will come through the expression of your own personality, that single spark of divinity that sets you off and makes you different from every other living creature.
Often extinctions in the ocean occur at the same time as those on land. Then again, the ice age extinctions lost many big animals, but not many sea faring ones.