Sperm whales get these dramatic scars during brutal deep-sea battles with giant and colossal squid. When a whale dives thousands of feet into pitch-black water, it hunts almost entirely by echolocation, locking onto massive squid hiding in the depths. As the whale attacks, the squid fights back, wrapping its powerful tentacles—lined with sharp, toothed suckers—around the whale’s face and head. Those suckers leave long white rake marks and circular scars that can last a lifetime. The deeper and m