Yes. In October 2005, sixteen orcas attacked, killed, and ate a fin whale in the Gulf of California, Baja California, Mexico.
NO.
Orcas will eat seals, and seals are mammals.
They don't. Orcas - Killer whales are toothed whales, and don't deliberately eat anything as small as plankton.
Killer whales, or orcas, eat both.
There is no proof that transient orcas eat pilot whales.
Orcas, Blue Whales, and Fin Whales. There are many more.
Yes, killer whales or orcas are carnivors.
Killer whales, also known as Orcas, eat manta rays.
They are the same thing.
Yes, some will.
Orcas, also known as Killer Whales, have dorsal fins. Beluga whales do not.
Sperm whales are not known to eat orcas. They're too big to be swallowed whole and sperm whales don't really have teeth or jaws for taking such a big animal apart.