Adult blue whales have no natural predators. They are too big and too strong to be attacked and killed by any animal. However, Orca's (Killer Whales) are known to attack and kill youngsters. A group of Orca's can easily hunt a baby blue whale if its mother is not around. Otherwise, they have no natural predators
Humans are the biggest threat to blue whales. Nearly 90% of the world population of these animals were wiped out over the past century by humans by whaling.
no they are not
plankton
A pod of killer whales. sharks
Giant squid and humans.
blue whales
Double No. Jaguars aren't known to be ocean swimmers, and blue whales are filter feeders.
Blue whales mostly eat krill, which is a kind of zooplankton living in the ocean.
no whales do not have enemies because there are big mammals
YesSpotted dolphins do have enemies : Killer whales and big sharks such as the Blue, Greenland, Riff, Hammerhead, The great white, and the mako sharks.
The world may not know who is the killer whales enemies.
Blue Whales are the largest.
Your question is mistaken. Blue whales eat krill. Krill are tiny organisms that float about in the water and are kind of like plankton.