the blue whale doesn't have no predators unless a group of killer whales attack it
They are predators.
First of all a squid is a predator it eats fish. Yet it is also prey, Squids are eaten by whales.
Penguins prey on fish. It is also prey of the sea lions and killer whales.
The Great Blue Heron is a predator. The definition of a predator is anything that hunts down prey to eat. The definition of prey is anything that gets eaten by another animal for the other animal's survival.
a 1000 foot long predator
Penguins are predators of fish, because they hunt and eat fish. Penguins may be eaten by seals or whales, so they are prey to seals and whales.
no th ey are not.
krill and sardine.
A variety of sharks, squid, and carnivorous whales (ex. Killer Whales) might be successful in killing an infant or adolescent blue whale given advantageous circumstances, but even that chance is low. Healthy adult blue whales have only one predator; Humans.
Killer whales prey on sea lions, as do some types of sharks.
The most part. But sea otter is mostly prey. It's prey to orca whales, sharks, and other ocean creatures.
In California great white sharks are the otters predator but in Alaska killer whales seem to be eating them.