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Susan Calman

2episodes
1podcast

We have 2 summarized appearances for Susan Calman so far. Browse all podcasts to discover more episodes.

Featured On 1 Podcast

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2 episodes

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→ WHAT IT COVERS The Infinite Monkey Cage explores the science of murder through forensic experts, covering how most killings are unplanned crimes of passion, how forensic botany and entomology solve cases, and how nature's predators use sophisticated hunting techniques. → KEY INSIGHTS - **Murder psychology:** Most murders are not premeditated by psychopaths but result from fights escalating out of control, fueled by aggression, alcohol, or drugs. Hot-tempered individuals commit more murders than calculated criminals, making crime scene management chaotic and evidence-rich. - **Forensic botany timing:** Brambles grow in predictable cycles that function like reverse tree rings, allowing forensic botanists to estimate how long remains have been buried by analyzing vegetation disturbance patterns. This technique helps establish timelines when bodies are discovered months or years later. - **Body disposal mistakes:** Dismembering bodies creates multiple crime scenes instead of one, dramatically increasing detection probability. Each disposal location becomes a separate evidence site, making this common television trope one of the worst strategies for avoiding capture in real criminal investigations. - **Flea evidence analysis:** Fleas abandon dead hosts immediately to seek warmth, making their presence or absence forensically significant. Vacuum cleaner dust bags can reveal whether flea infestations are genuine or fabricated excuses, as demonstrated in a case where lack of fleas exposed a murder cover-up. → NOTABLE MOMENT The emerald jewel wasp injects neurotoxin directly into a cockroach brain, leaving it mobile but willless, then walks the zombified insect like a dog to an underground tomb where wasp larvae consume it alive as a fresh larder while the host remains paralyzed. 💼 SPONSORS [{"name": "Pandora Jewelry", "url": "https://pandora.net"}, {"name": "Paycor", "url": "https://paycor.com/leaders"}, {"name": "Wren Technology", "url": "https://reninc.com"}] 🏷️ Forensic Science, Criminal Psychology, Forensic Botany, Entomology

AI Summary

→ WHAT IT COVERS Botanist Sandy Knapp and geneticist Glenn Bryan explore potato science, revealing 104 wild species exist beyond the single cultivated species, tracing domestication to Lake Titicaca 8-10 thousand years ago, and discussing future diploid breeding innovations. → KEY INSIGHTS - **Genetic complexity:** Cultivated potatoes are tetraploid with four chromosome sets instead of two, making breeding take longer than wheat or rice. Each seed produces completely different offspring, requiring vegetative propagation through tubers to maintain varieties consistently. - **Species diversity misconception:** All supermarket potato varieties belong to one species, Solanum tuberosum, representing just one of 104 wild potato species. Andean farmers cultivate over 1,000 named varieties with specific culinary purposes, from soup-making to freeze-dried chuno production. - **Disease resistance breeding:** Wild Mexican potato species were crossed with cultivated varieties after the 1845 Irish famine to introduce late blight resistance genes. This cross-species breeding technique continues improving contemporary potato disease resistance using genetic material from related wild species. - **Diploid breeding revolution:** Researchers pursue converting tetraploid potatoes to diploid seed-propagated crops, enabling storage as lightweight seeds instead of refrigerated tubers. This transformation would particularly benefit Asia and East Africa where tuber storage infrastructure remains problematic. → NOTABLE MOMENT A Peruvian farmer displayed over 1,000 distinct potato varieties on a three-meter rug, each with unique names and culinary applications. The loss of indigenous varieties through mechanized agriculture represents cultural extinction comparable to losing languages or species. 💼 SPONSORS None detected 🏷️ Potato Genetics, Agricultural Biodiversity, Crop Domestication, Plant Breeding

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