Any creature is capable of aggressive behavior. The really question should be is a blue whale likely to act aggressively in that case the answer is no. The issue with blue whales and how people end up in trouble by them is their curiosity. read more
While whales can be dangerous at times situations where humans are injured by whales is extremely rare. For the most part whales tend to be very solitary animals and people generally are not within a close enough proximity to be harmed by a whale, even if the whale where in fact dangerous or aggressive. read more