Orcas displaying how their dorsal fins should look
Another view of the Orcas we saw in Iceland, but I like this because it so clearly shows how the dorsal fin of wild orcas should stand - straight up. This might seem obvious, but many of the orcas kept in captivity develop dorsal fins that flop over to one side and the organizations that keep them in captivity claim that this is normal. It is not. Orcas should not be kept in captivity.
The killer whale, also referred to as the orca whale or orca, and less commonly as the blackfish, is a toothed whale belonging to the oceanic dolphin family. Killer whales are found in all oceans, from the frigid Arctic and Antarctic regions to tropical seas.