They generally don't. When hunted by killer whales or whaling ships, they usually swam away at speed. When overtaken by the former, they don't show any physical defense and are devoured alive. There have been a few instances of fin whales ramming and damaging or even sinking whaling ships in the late 19th and early 20th centuries.
the killer whale (orca whales) and humans
Finback whales eat by swimming through schools of fish with their mouth open and ready to swallow. They feed on krill, herring, and cod.
about 7,000 pounds
minke, finback, humpback
because of the dorsal fin on their back
Baleen whales.
I don't think they have a way of protecting themselves. They are usually eaten by whales anyways and there isn't much protection from a whale if you are as small as krill. They can protect themselves but not against whales. They protect themselves by traveling in large numbers.
They are the most common whales in the Mediterranean sea but live deep in all the ocean of the world.
by vibrating water
they blow out water
THE TOOTHLESS WHALES: blue whales, finback whales, right whales, sei whales, humpback whales, and gray whales. THE TOOTHED WHALES: white beluga whales, black beluga whales (pilot whales), orcas (killer whales), sperm whales.
an M16 and a flame thrower