Sperm Whale facts: the most populous whales | Animal Fact Files
The sperm whale is the largest toothed whale. They have 20-26 teeth on each side of their lower jaws. Technically they have upper teeth, too, but these are vestigial and rarely erupt. Sperm whales are deep ocean dwelling animals making dives up to 6,500 feet (2,000m) to find food in the form of gian