Instruction: answer questions 36 to 40 based on the following text.
The Natural History Museum’s new star attraction
- In spring, the Natural History Museum in London will display the skeleton of a titanosaur,
- a creature so vast it will have to be placed into the 9-meter-high Waterhouse gallery. One of the
- most massive creatures ever to have walked on Earth, Patagotitan mayorum was a 57-tonne
- behemoth that would have shaken the ground as it stomped over homelands that now form
- modern Patagonia. Its skeleton is 37 meters long, and 5 meters in height – significantly larger
- than the museum’s most famous dinosaur, Dippy the diplodocus, which used to loom over its main
- gallery.
- The remains of Patagotitan mayorum were uncovered in 2010 when a ranch owner in
- Patagonia came across a gigantic thigh bone sticking out of the ground. Argentinian fossil experts
- later dug up more than 200 pieces of skeleton, the remains of at least six individual animals. Casts
- have been made of these bones by the Museo Paleontológico Egidio Feruglio in Trelew, Patagonia,
- and these form the skeleton that will go on display in London in March.
- Patagotitan mayorum lived about 100 million years ago, during the late Cretaceous period,
- near the end of the dinosaurs’ reign on Earth. It was one of the three or four biggest species of
- titanosaur now known to science. These creatures were built like suspension bridges with a huge
- spine, a vast neck for gathering food from trees, and a tail to provide balance. “They were
- herbivores that gobbled up plants and leaves and fermented them in their vast stomachs,
- producing huge amounts of methane as a byproduct – so you would not want to hang around the
- back end of one of these animals,” said museum dinosaur expert Prof Paul Barrett.
- Several mysteries still surround Patagotitan mayorum, however. “You find remains of big
- dinosaurs in many places but in Patagonia you get ones that are absolutely massive, like
- titanosaurs,” Barrett said. “So was there something special about the ecology of the region at this
- time or have we just been unlucky so far in not finding titanosaur remains elsewhere?” It is also
- not clear why the six animals died so close together. “They were all almost fully grown and died
- at the same site,” said Sinead Marron, the exhibition’s lead curator. “But why? What could have
- done that? It is not clear, though the mystery gives an extra dimension to the story of these
- wonderful animals.”
(Available in: https://www.theguardian.com/science/2022/nov/26/titanosaur-natural-history-museum-dippy-the-diplodocus – text adapted specially for this test).