Because it has teeth instead of baleen, the Sperm Whale is the world's largest toothed predator at nearly 60 feet in length. They keep up their size by diving down to 1000 meters and holding their breath for up to 90 minutes as they search for giant squid.
The name Sperm Whale was given by whalers many years ago, whoupon capturing the large whales, found a whitish substance insidethe animals' large heads. The name given was inaccurate, but itstuck. The Sperm Whale holds a number of distinctions in the animalkingdom. They are the largest toothed whales, as they don't havebaleen like some larger whales. This also makes them the largesttoothed predator alive today. They have the largest brains of anyanimal alive, housed inside the largest skulls. They also have aunique blowhole on their left side, resulting in an angled spraythat makes them instantly recognizable by whale watchers.