The Science Pawdcast

Send us a textA father that gives birth, a horse that says “no,” and an ER doctor who wants to keep you out of the hospital—this episode brings science and everyday choices into sharp focus. We start with a mind-bending dive into seahorses, where males carry the pregnancy and build a placenta-like environment from skin. New research shows familiar pregnancy genes at work inside the brood pouch, but with an unexpected hormonal switch: androgens, not estrogens, drive gestation. It’s evolution repurposing its toolkit—and a powerful reminder that sex roles in nature are more flexible than we think.From there, we move into animal-assisted therapy and the role of consent in touch. A new study comparing dogs and horses found that forced interactions with horses raised heart rate and lowered HRV, signaling more stress, while choice calmed people down. Dogs showed no significant difference between conditions, suggesting human perception and species-specific behavior shape outcomes. If you run therapy programs, the insight is simple and humane: build animal choice into sessions, especially with horses, and track long-term welfare alongside human benefits.Then ER physician Dr. Shazma Mithani joins us to turn insight into prevention. We talk helmets for anything on wheels or snow, why e‑scooters drive more severe injuries per use than bikes, and how regular checkups and screening prevent emergencies before they start. We break down wildfire smoke—how particulates inflame lungs and harm the heart and brain—plus when to wear a well-fitted N95 outside and how to upgrade home air with MERV 11–13 filters or HEPA purifiers. Finally, we tackle measles: an airborne virus that lingers for hours, demands 95% vaccination for herd immunity, and is best stopped with two doses of MMR. Unsure where to get trusted answers? Talk to your doctor, pharmacist, or public health nurse, and lean on credible sources rather than influencers.If this helped you think differently about biology, safety, or public health, tap follow, share it with a friend, and leave a review with your biggest takeaway—we’ll feature our favorites next week.Dr. Shazma Mithani's links:Her websiteHer PodcastInstagramOur links!Support the showFor Science, Empathy, and Cuteness!Being Kind is a Superpower. All our social links are here!

Send us a textCoffee may nudge biology, but only within limits. We dig into new research suggesting that three to four cups a day align with longer telomeres for people with severe mental illness, then challenge the hype with the caveats that matter: observational design, smoking as a confounder, wildly different cup sizes and brew methods, and the reality that more caffeine can erase potential benefits. We translate the science into practical guidance—why moderation beats megadoses, how 400 mg per day became a sensible upper bound, and where sleep and stress fit into the bigger picture of healthy aging.Then we pivot to a feline mystery that spans millennia. Long before house cats padded through Chinese homes, leopard cats were the stealthy mousers around early settlements, drawn by grain and the rodents it attracts. Using mitochondrial DNA from ancient remains—paired with clues from art—we trace the species shift around the eighth century as domestic cats, descended from the African wildcat, traveled the Silk Road and found their place beside people. Tameness, tolerance, and a knack for living close to humans helped them outcompete their wild cousins in a world reshaped by trade and urban life.Across both stories runs one thread: human routines create niches that biology rushes to fill. Our cups change our days at a cellular level, and our granaries and roads alter which animals share our spaces. If you love clear science, a bit of myth-busting, and the unexpected link between breakfast and ancient history, you’ll feel right at home here. If this resonated, follow the show, share it with a friend who loves coffee or cats, and leave a quick review—what surprised you most?Here is the link to all our socials and stuff!!!Support the showFor Science, Empathy, and Cuteness!Being Kind is a Superpower. All our social links are here!

Send us a textWhen the brain gets knocked, it fights back—at least for a while. We open with new research that uses ALPS MRI to watch the glymphatic “waste rivers” of the brain as they surge after repeated head impacts and then falter when the system is pushed too far. That real-time look at fluid flow explains why early symptoms can be misleading and why rest, recovery windows, and better sideline calls aren’t just policy—they’re neuroprotection. We talk sports protocols, long-term risk, and how biomarkers could warn athletes before decline sets in.Then we lean into joy with rigor. Our pet science segment dives into a Cambridge study of more than a thousand golden retrievers showing that genes tied to trainability, fear of strangers, energy, and dog-to-dog aggression overlap with human genes for anxiety, depression, and intelligence. It’s not destiny; it’s sensitivity. We unpack how emotional regulation genes shape learning and coping, why some “bad” behavior is actually distress, and how training plans can be kinder and more effective when they support the nervous system, not just reward the behavior.To cap it off, we welcome John Reider,, the chief bubble dude behind Atomic Bubbles, for a whimsical masterclass in safe, scented bubbles for pets. He breaks down cosmetic-grade ingredients, water-soluble fragrances, and machine-friendly formulas that make durable bubbles dogs and cats actually chase. We explore lavender and pheromone-infused bubbles as floating diffusers for calming anxious pets, plus practical notes on storage, allergy concerns, and why bacon and peanut butter scents work without real allergens.Curious about brain health, dog behavior, and the science of pure fun? Hit play, subscribe for more smart, warm conversations, and share this episode with a friend who loves science—and their pets.ATOMIC BUBBLES with links to their socials!Here is the link to all our socials and stuff!!!Support the showFor Science, Empathy, and Cuteness!Being Kind is a Superpower. All our social links are here!

Send us a textA vaccine built for a virus might be whispering a powerful message to cancer care. We dig into a new Nature paper suggesting that mRNA COVID shots could enhance the effectiveness of checkpoint inhibitor immunotherapy—especially in non‑small cell lung cancer and melanoma—by acting as an immune alarm that sharpens anti‑tumor responses. The data is retrospective, not causal, so we break down why the signal is exciting, where confounders can hide, and what the next generation of trials must test: timing, vaccine type, biomarkers, and who stands to benefit most.From there, we switch gears to the first weeks of a dog’s life. A small but detailed study of Australian breeders maps nine practical socialization steps—novel objects, varied surfaces, calibrated sound exposure, hands‑on handling, human visitors, other animals, off‑site trips, car rides, and rotating environments—that build confident, adaptable companions. We compare three rearing strategies, from uniform protocols to individual puppy plans, and connect these choices to fewer fear issues, better training outcomes, and smoother vet and grooming visits down the line.Journalist and author Melanie Kaplan joins us to share Hammy’s story—a beagle rescued from a research lab—and the deeper reporting behind her book, Lab Dog: A Beagle and His Human Investigate the Surprising World of Animal Research. We talk about why beagles became the default lab dog, the emotional toll and resilience of retired animals, and the promising rise of non‑animal alternatives like organs‑on‑chips, human cell models, and computational toxicology. With FDA and NIH signaling support for methods that are more humane and more predictive, there’s a real path to better science with less harm.If this conversation moved you or made you think, follow the show, share it with a friend who loves science and animals, and leave a quick review to help others find us.Links to Melanie's Book and SocialsHere is the link to all our socials and stuff!!!Support the showFor Science, Empathy, and Cuteness!Being Kind is a Superpower. All our social links are here!

Send us a textEver wonder how a pumpkin could help clean a toxic field—and why your dog might boost your mood as much as a wedding ring? We unpack both, starting with fresh research from Kobe University that reveals how a small amino acid tag on major latex-like proteins pushes pollutants into plant sap. That single routing decision explains why some gourds move stubborn chemicals like PCBs all the way to their fruits, illuminating both the promise of phytoremediation and the risk if contaminated soils meet our dinner tables. We talk practical implications for agriculture too—how breeders and bioengineers could tune protein binding and secretion to create safer crops while using separate plots for soil cleanup.Then we turn to the science of happiness with a study that estimates cats and dogs can elevate life satisfaction on par with being married or seeing friends often. The researchers used instrumental variables to tease causation, not just correlation, and the findings match what many of us feel: pets reduce loneliness, add structure, and get us moving. We dig into the nuance—pets offer deep comfort and presence, while people bring complex emotional and intellectual support—and why the best lives layer both.If this mix of plant science, pet happiness, and real-world tips resonates, follow the show, share it with a friend, and leave a quick review so more curious listeners can find us.Here is the link to all our socials and stuff!!!Support the showFor Science, Empathy, and Cuteness!Being Kind is a Superpower. All our social links are here!