As they grow, the sharks' favorite prey becomes sea mammals, especially sea lions and seals. ... Using their tails as propellers, they swim upward at a fast sprint, burst out of the water in a leap called a breach, and fall back into the water with the seal in their mouths
1) Learn the way/what animals eat
2) Learn more about humans to solve/cure diseases
3) To increase intelligence
4) Saftey of Earth (humans,animals,plants,etc.)
I am sorry I don’t understand your question
The answer to your question is d :)