My epic journey becoming the fastest person to paddle around Australia | Bonnie Hancock

There are more than 2,000 firefly species, found on every continent except for Antarctica — an astonishing diversity of movement and light. Firefly scientist Wan Faridah Akmal Jusoh explores the mysteries of these little beetles that light up the night and details her quest to discover and protect new species as their habitats are at risk of disappearing.

Each Sunday, TED shares an episode of another podcast we think you'll love, handpicked for you… by us. Today: an episode from TED Tech. From the construction of virtual realities to the internet of things host Sherrell Dorsey guides you through the latest ideas from TED Speakers, uncovering the riveting questions that sit at the intersection of technology and society.What happens when the data-driven capabilities of AI are combined with human creativity and ingenuity? Shining a light on the opportunities this futuristic collaboration could bring to the workplace, AI expert Shervin Khodabandeh shares how to redesign companies so that people and machines can learn from each other. After Shervin's talk, hear from Sherrell on the potential promises (and pitfalls) of AI-work integration. 

When the world's problems have you weary, journalist and science fiction writer Annalee Newitz suggests a good dose of escapist fiction to refresh your perspective. Step into the whimsical world of science fiction, cosplay and "goblincore" to see how fantasy worlds help us reimagine our relationships with our communities and each other — and why the best way to solve your problems may start with escaping them.

What you experience through your senses — sight, smell, hearing, taste and touch — can impact how healthy you are and how long you live, says neurobiologist Christi Gendron. She explores how environmental cues like temperature, light and even just the sight of death have influenced the lifespan of fruit flies, suggesting your everyday perceptions may have direct repercussions on your ability to live a long, healthy life.

As climate change leads to more and more natural disasters, a group of workers is showing up at one site after another to rebuild and repair. Labor organizer Saket Soni tells the stories of Resilience Force — the group of mostly immigrant workers restoring homes after hurricanes, floods and fires — and describes the unexpected bonds developing between the residents whose lives have been turned upside down and the laborers helping put things back together.

In the beginning of the universe, all was darkness — until the first organisms developed sight, which ushered in an explosion of life, learning and progress. AI pioneer Fei-Fei Li says a similar moment is about to happen for computers and robots. She shows how machines are gaining "spatial intelligence" — the ability to process visual data, make predictions and act upon those predictions — and shares how this could enable AI to interact with humans in the real world.

We're programmed to think every issue is binary: "us vs. them." But Daniel Lubetzky, the founder of KIND Snacks, says the real enemy isn't a person but a mindset. He introduces a new initiative that aims to bring together "builders" from around the world to replace extremism with practical problem-solving — and shows how you can join the movement.

Bill Ackman has made billions of dollars — and a name for himself — as an activist investor, buying up stock to push for change at companies. In this wide-ranging conversation with author and business ethics professor Alison Taylor, Ackman discusses how he's bringing his activism into the social and political spheres — and shares his thoughts on free speech, his notoriously long posts on X, the conversation around Harvard and DEI and more.

Each Sunday, TED shares an episode of another podcast we think you'll love, handpicked for you… by us. Today: in celebration of Mother's Day , we're sharing an episode we think you'll enjoy from How to Be a Better Human.Activist, and MacArthur Genuis, Ai-jen Poo believes that caring for others is one of the fundamental acts that make us human. But from nannies to elder-care workers, house cleaners to living assistants, single parents and beyond, globally, caretakers do not earn fair wages or recognition for their essential, life-giving labor. The President of the National Domestic Workers Alliance, Ai-jen explains how society undervalues domestic work, and provides a framework on how we can start a conversation about the future of care for our loved ones – and ourselves. For the full text transcript, visit go.ted.com/BHTranscripts  

There's a reliable indicator of a woman's future likelihood of cardiovascular disease — but it rarely gets asked about, says obstetrician and researcher Meryam Sugulle. She delves into the role of the placenta in pregnancy, how it can predict health outcomes and the single question that should be worked into routine health screenings.