 In contrast to numerous more modern museums, the Harvard Museum of Natural History has many hundreds of stuffed animals on display, from the collections of the Museum of Comparative Zoology.Notable exhibits include whale skeletons, the largest turtle shell ever found (eight feet long), "the Harvard mastodon", a long "Kronosaurus" skeleton, the skeleton of a dodo, and a coelacanth preserved in fluid.The two-story Great Mammal Hall was renovated in 2009 in celebration of the 150th anniversary of founding of the Museum of Comparative Zoology.