When you imagine a museum, you might picture cases of artifacts. But the objects on display at the Harvard Museum of Natural History are a tiny percentage of the total collections. Behind the scenes, experts care for 26 million specimens. These objects form the basis for studying life on Earth. They are records of the planet from different times and places. Objects span billions of years and come from every continent, ocean, and beyond.

Rubies is a new, intimate collection of stunning minerals, gemstones, and jewelry on display in the Earth & Planetary Sciences Gallery. 

In this remarkable exhibition, discover why the most massive sharks prey on some of the ocean’s smallest critters. Learn how to decipher dietary clues from jaws preserved in Harvard’s world-class collections. Explore how miniature teeth on shark skin help them move efficiently through water.