Trees A Crowd


Dr Guy Stevens: Guarding the Big Blue’s Gentle Giant

Season 1, Ep. 8

Dr Guy Stevens is the CEO and co-founder of The Manta Trust. An experienced marine biologist and expert in conservation, he set up the Maldivian Manta Ray Project in 2005. Working closely with the Maldivian government to establish protective measures and educate against targeted fishing, his project eventually grew and now stretches across the oceans. In this episode, Guy explains how his hobby turned into a reality; from breeding tropical fish in his sister’s fish tank to swimming alongside dolphins and sharks in the Maldives. He shares his thoughts on the intelligence of fish, the multiple mysteries of the Manta and highlights his concerns about sustainable tourism driving the Maldivian economy.

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Dr William C. Tweed: The secret histories of John Muir’s Giant Redwoods

Season 2, Ep. 18
Dr William C. Tweed is a lover of Big Trees - the Giant Redwoods of California to be precise. An historian and naturalist, he has a career spanning over 30 years working for the US national park service, and after holding several roles at the Sequoia and Kings Canyon National Parks, spent a decade as its Chief Naturalist. Whether it’s describing what a Giant Redwood is through a comparison to the miniscule mosquito, or a deep dive into numerous secret histories of mankind's fascinations with these trees, William will have you captivated, falling in love with, and longing to hug, the giant sequoia. In exploring the tree’s many wonderful evolutionary features, and the serene images he paints of the Sierra Nevada, William explains that our passion for sequoias starts with our love of that which is “big, and old, and rare”, and then continues to grow tall. William explores the history of the “Father of the National Parks” himself, John Muir - how his religious upbringing inspired his writing (his works serving as a “secular Bible” for those devoted to nature) - and how the Sierra Club is still following firmly in Muir’s footsteps today. Among William’s teachings are plenty of digressions and distractions - charming moments of a mind as fascinated by nature today as he has ever been.For further information on this and other episodes, visit: