Its number 1.
No one its the top of the food chain/web. humans r the top of the world food web so were the only enemy to orcas but there the top in the ocean food chain/web
they killer it
megalodons ate whales so it ate killer whales too. it ate all whales
no food
no
Yes
Killer Whales (AKA Orcas) eat seals, penguins, and even other whales.
us humans kill killer whales for food
killer whales are at the top of the food chain only humans can kill killer whales cause we have weapons like guns and things like that
Yes, they do
no, killer whales eat any dolphin they can find + they even eat whales bigger than them
by communicating an d camouflage