Sperm whale has the largest brain on Earth, more than five times heavier than a human's. Sperm whales can live for more than 60 years. Spermaceti (sperm oil), from which the whale derives its name, was a prime target of the whaling industry, and was sought after for use in oil lamps, lubricants, and candles. Ambergris, a solid waxy waste product sometimes present in its digestive system, is still highly valued as a fixative in perfumes, among other uses. Beachcombers look out for ambergris as flotsam. Sperm whaling was a major industry in the nineteenth century, immortalised in the novel "Moby Dick".
Bowhead whale whales" were confirmed to be from bowhead whales. The bowhead whale has a large, robust, dark-coloured body and a white chin/lower jaw. The whale has a massive triangular skull, which it uses to break through the Arctic ice to breathe. Inuit hunters have reported bowheads surfacing through of ice. The bowhead also has a strongly bowed lower jaw and a narrow upper jaw. Its baleen is the longest of that of any whale, at , and is used to strain tiny prey from the water. The bowhead whale has paired blowholes, at the highest point of the head, which can