Science

Tiny Matters

by Multitude

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Latest episodes

The canaries in the coal mine: How sentinel species monitor our world

October 14, 2026 · 31 min

For decades, coal miners relied on canaries to warn them about deadly carbon monoxide underground. Canaries were retired from that work at the end of the 20th century, but today scientists still rely on certain organisms, referred to as…
[BONUS] Decoding dinosaur colors and the failure of postpartum care: Tiny Show and Tell Us #57

October 7, 2026 · 19 min

In this episode of Tiny Show and Tell Us, a listener asks why maternal mortality rates in countries like the U.S. and Canada have risen while many other wealthy nations have seen them plateau or even decrease. We talk about postpartum…
How do you save a species?: Breakthroughs from cheetahs, red wolves, and 'spicy' toads

September 30, 2026 · 42 min

Cheetahs carry the genetic scars of an Ice Age bottleneck, red wolves are so rare that every egg matters, and harlequin frogs need their natural toxins restored before they can thrive in the wild again. But avoiding extinction requires far…
[BONUS] Milking spiders and why this scientist’s grave is covered in gifts: Tiny Show and Tell Us #56

September 23, 2026 · 33 min

In this episode of Tiny Show and Tell Us, we first discuss funnel-web spiders, who are among the most venomous spiders on Earth. Maybe somewhat paradoxically, their toxins are being studied to treat human disease and chronic pain. Then we…
Biofilms: The sticky, slimy communities behind some of medicine's toughest infections

September 16, 2026 · 37 min

Biofilms are everywhere: your teeth, your kitchen sponge, and even medical implants. Scientists are uncovering how these highly organized microbial communities protect bacteria from antibiotics and the immune system, and how understanding…

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[BONUS] ‘Drinking Grandma,’ digital cadavers and debunking a grave robbing myth: Tiny Show and Tell Us #55

September 9, 2026 · 23 min

In this episode of Tiny Show and Tell Us, we explore the fascinating history of embalming, from ancient mummies to arsenic-laced funeral practices (that weren’t all that long ago!). Then we chat about cadaver dissection, the importance of…
The Shroud of Turin: American Medieval x Tiny Matters crossover episode

September 3, 2026 · 1 hr 6 min

In this special bonus episode, we join American Medieval with host Matthew Gabriele, a professor of medieval studies and who knows about a LOT of history that we don’t. We're there to chat with Matt about some new science research…
Foraminifera: The one-celled predators that shaped our planet (and kept the receipts)

September 2, 2026 · 37 min

Single-celled marine organisms called foraminifera may be microscopic, but they've had a massive impact on life on Earth. They also leave behind intricate shells that have become part of a fossil record stretching back more than 500…
[BONUS] Dangerously tiny frequencies, endometriosis tests, and cookies made from ... plastic?: Tiny Show and Tell Us #54

August 26, 2026 · 26 min

In this episode of Tiny Show and Tell Us, we discuss new blood tests and research into blood biomarkers that could make diagnosing endometriosis faster and less invasive. Next, we unpack subsynchronous resonance, a phenomenon that can…
Giant viruses: How these amoeba-infecting behemoths are rewriting the rules of virology

August 19, 2026 · 36 min

Scientists spent decades searching for viruses by filtering out anything too large to be one. That strategy seemed to work well... until it didn't. When researchers discovered a microbe living inside an amoeba that looked like a bacterium…
[BONUS] Fairy tale evolution and the 400(ish) year old elusive Greenland shark: Tiny Show and Tell Us #53

August 12, 2026 · 31 min

In this episode of Tiny Show and Tell Us, we explore how scientists are using evolutionary methods to reconstruct the history of folktales like Little Red Riding Hood, Beauty and the Beast, and Jack and the Beanstalk. Then guest Matt…
From cow’s milk to blood banks: The surprising evolution of blood transfusions

August 5, 2026 · 36 min

Before modern blood transfusions, doctors tried some odd alternatives, including cow's milk. In this episode, we trace the fascinating history of blood transfusions, from risky animal experiments and failed milk injections to the discovery…

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About the show

Science shapes every facet of our lives, but so much of its influence is overlooked or buried in the past. Tiny Matters is an award-winning science podcast about the small science of big things. From the microbes behind deadly diseases to the molecules informing our search for extraterrestrial life, hosts and former scientists Sam Jones and Deboki Chakravarti embrace the awe and messiness of science and its significance both today and in the past, asking questions like, "how was IVF invented?," "what do glaciers tell us about Earth’s ancient past?," and "why is smallpox the only human infectious disease we’ve eradicated?" Tiny Matters is created by the American Chemical Society, a non-profit scientific organization based in Washington, D.C., and is produced by Multitude. New episodes every Wednesday, wherever you listen to podcasts.