Objects from our Natural World collections Our comprehensive natural sciences collection covers Zoology and Geology. From dinosaur remains and rocks and fossils millions of years old to extinct or endangered animals and meteorites from outer space, our collection covers it all. NumbatDiscover the Australian mammals in the Natural World galleries and meet the rare numbat. Ching ChingMeet one of the world’s most endangered species – and one of London Zoo’s most famous residents. Tyrannosaurus rexMeet our spectacular 12 metre-long, life-sized skeleton cast of a T.rex. Muonionalusta meteoriteUnearth an exhibit that’s out of this world. Fossilised tree sliceGet up close to a slice of ancient history and meet Scottish naturalist John Muir. Blaschka modelsThese amazing glass models have been educating and inspiring visitors for almost 150 years. Orbicular granodioriteUncover the origins of this stunning specimen of polished igneous rock. Calcite crystalThis crystal was rescued from going to the crusher by a mine worker.