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.

Hippos, killer whales and sperm whales are targeted for their teeth, while narwhals and walruses are hunted for their tusks. An investigation in 2022 by conservation charity Born Free found 621 ...

In fact, it's closer in length to a modern sperm whale. Its stomach may have held ... How big are the megalodon's teeth? Watch the video above to see how big the megalodon's tooth compares ...

Ten of the intricately-carved pieces have been redisplayed in a case which allows visitors to see their backs for the first time.