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  • Tooth and Claw: Leopards
    Investigating an elusive big cat known for its excellent tree climbing abilities - the leopard! This master of camouflage is found from the south of Africa to the far east of Asia – a spotted predator that stalks and ambushes its prey!Presenter Adam Hart will investigate their relationships with tigers and lions, as well as learning about a recent discovery that leopards each have their own unique roar. He’ll also discuss the future of the Arabian leopard and the potential for a reintroduction to Saudi Arabia, and find out about the role of synthetic fur capes known as ‘Heritage Furs’ in leopard conservation. Contributors:Dr. Gareth Mann, who is based in South Africa, is Leopard Program Director for Panthera, the global wild cat conservation organisation.Dr. Charlotte Searle, postdoctoral researcher and conservationist based in Tanzania, who is associated with the Wildlife Conservation Research Unit at the University of Oxford.Presenter: Professor Adam Hart Producer: Jonathan BlackwellPhoto: Leopard in tree Credit: Valentin Wolf via Getty Images
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  • The Thirst for Water
    On this episode of The Evidence, Claudia Hammond discusses all things hydration with a panel of experts. Where do our hydration guidelines come from? How do we determine the perfect amount of water we should drink? What are the issues with water access that people and populations face aroud the globe? And how will climate change affect the amount of water we need, and our access to it. In front of a live audience at the Wellcome Collection in London, Claudia discusses these questions and more with Neil Turner, nephrologist and professor emeritus at Edinburhg University, Yael Velleman, Director of Policy and Innovation at Unlimit Health, working at the intersection of water access, sanitation, and disease; and Anthony Acciavatti, an associate professor at Yale Architecture School and creator of the exhibtion Groundwater Earth: The World Before and After The Tubewell.
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  • Tooth and Claw: Harpy Eagles
    Named after a beast from Greek mythology, the harpy eagle is widely considered to be the most powerful bird of prey due to its strong legs and huge talons. With a crown of feathers atop its head, and known for eating monkeys and sloths, this regal-looking raptor dominates the rainforest canopies across much of South and Central America. Presenter Adam Hart looks into the folklore and cultural importance of these imposing birds, as well as finding out why these apex predators of the treetops are having to increasingly search for ground-dwelling prey such as armadillos. He also hears how harpy eagle researchers were the pioneers for biological applications of GPS in order to study and track these animals in the dense rainforest.Contributors:Dr. Helena Aguiar-Silva, biologist and associate research scientist at the National Institute for Amazonian Research and a member of Projeto Harpia Brasil.Dr. Eduardo Alvarez founder of a non-profit organisation called EarthMatters.org, to concentrate on the study and conservation of harpy eagles and to preserve their rainforest habitat.Presenter: Professor Adam Hart Producer: Jonathan BlackwellImage: Harpy eagle and nest with chick Credit: João Marcos Rosa
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  • Tooth and Claw: Killer Whales
    Investigating the black-and-white apex predator of the sea – the killer whale! Able to predate even great white sharks, this marine mammal is the largest member of the dolphin family. From tropical seas, to the Arctic and Antarctic, killer whales (or orcas) are found across the world. Living in family groups and often led by a post-menopausal matriarch, killer whales have passed on their hunting methods, which vary depending on which prey they specialise in hunting, through the generations.Presenter Adam Hart finds out about the killer whales incredible social behaviours (such as wearing salmon as hats) and hears how a dog is helping killer whale researchers access a gold mine of information about this predator. He also hears what challenges killer whale populations are facing and why killer whales may be attacking boats off the coast of the Iberian peninsula.Contributors:Dr. Leigh Hickmott, whale biologist and conservationist, who is an expert on Pack Ice killer whales, and whose research uses them as indicators to assess human disturbance of marine habitats.Dr. Deborah Giles, who is an expert on Southern Resident killer whales, based with the SeaDoc Society, a program of the Karen C. Drayer Wildlife Health Center at the UC Davis School of Veterinary Medicine.Presenter: Professor Adam Hart Producer: Jonathan Blackwell(Photo: Killer Whales, Credit: Serge MELESAN via Getty Images)
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  • The Life Scientific - Tim Peake
    What's it like living underwater for two weeks? What's the trickiest part of training to be an astronaut? What are the most memorable sights you see from space? Several extreme questions, all of which can be answered by one man: Major Tim Peake. After a childhood packed with outdoor adventures, via the Cub Scouts and school Cadet Force, Tim joined the British Army Air Corps and became a military flying instructor then a test pilot; before eventually being selected as a European Space Agency (ESA) astronaut. In 2015, Tim became the first British ESA astronaut to visit the International Space Station. Over the course of a six-month mission, he took part in more than 250 scientific experiments and worked with more than two million schoolchildren across Europe. In a special New Year’s episode recorded in front of an audience at London’s Royal Society, Professor Jim Al-Khalili talks to Tim about his lifelong passion for adventure, the thrill of flight and why scientific experiments in space are so important. Presented by Jim Al-Khalili Produced by Lucy Taylor
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