The sale of ivory from the tusks and teeth of ... Hippos, killer whales and sperm whales are targeted for their teeth, while narwhals and walruses are hunted for their tusks.

He collected specimens that inspired his theory of Natural Selection.This carved sperm whale's tooth, or scrimshaw, was made on the HMS Beagle. It is made from ivory and was carved by James Bute.

The officer inspected the trunk and found nine statues, including four made of ivory, the Vermont U.S ... of those carvings were made of sperm whale teeth and the fourth was made of walrus ...