Are whales and dolphins aggressive and dangerous?
Most dolphin and whale species are peaceful and rather shy. So far humans have proven to be of much greater danger to whales and dolphins than the other way round. However, some species like killer whales and pygmy killer whales can become aggressive. They are much less aggressive than their names imply though. If you go diving with whales, the danger is mostly a result of their size. They might harm you without intending to do so.