It's unlikely that killer whales would ever try to attack a blue whale due to the epic difference in size. Orcas would most likely avoid a blue whale and would go after prey smaller than themselves.
Basically, I dbout a killer whale could harm a blue whale.
they killer it
Usually killer whales kill blue whales.
no
A pod of killer whales. sharks
Killer whales
Killer whales
No, they are certainly not. Blue whales and killer whales both belong to the same order: Cetacea, the order of the whales. Though that's where the liking stops. Because Killer whales belong to the suborder Odontoceti (toothed whales) and Blue whales belong to the suborder Mysticeti (baleen whales).
yes they can but it depends wich whale is female No, killer whales and blue whales differ in size greatly, also, Killer whales (Orcas) are actually Dolphins.
The calves of blue whales are hunted by killer whales.
killer whales eat fish where as blue whales eat mostly krill.
Blue Whales, Beluga Whales, Killer Whales, Sperm Whales, and Narwhals.
Killer whales.