The Natural History Museum in London presents 'Jurassic Oceans: Monsters of the Deep,' an exhibition exploring ancient marine life that thrived over 66 million years ago. Curator Marc Jones and exhibition manager Kate Whittington guide visitors through a collection of fossils, casts, and 3D-printed sculptures, including the impressive skeleton of a 23ft plesiosaur. This creature, with its long neck, was adept at sneaking up on prey, showcasing the sophisticated hunting strategies of prehistoric marine reptiles. The exhibition also features ichthyosaurs, known for their large eyes and speed, which became extinct earlier than other marine reptiles due to climate shifts that impacted their food sources, particularly ammonites. The display culminates with the skull of a mosasaur, dubbed the 'T rex of the sea,' emphasizing the unique predatory roles these creatures played in their ecosystems. Jones warns that current climate issues, such as ocean warming and acidification, echo the historical changes that once reshaped marine life. He notes that the rapid pace of today's climate change poses a significant threat to modern marine ecosystems, as many species may struggle to adapt.