Whales are mighty. Blue whales, for example, aren’t only the largest animal on Earth, but as far as we know, they’re the largest animal that’s ever existed on Earth—and that includes dinosaurs.
Toothed whales use sound to find their way around, detect objects, and catch fish. They can investigate their environment by making clicking sounds, and then decoding the "echoic return signal" ...
Detached orca fins scored with distinctive tooth marks suggest that killer whale cannibalism is happening — and it might ...