CHAPTERS
- 0:00 – 1:02
Beth Shapiro’s path into ancient DNA and Colossal’s de-extinction work
Joe welcomes Beth Shapiro, a paleogenomics (ancient DNA) scientist who recently left academia to become Chief Science Officer at Colossal. They frame de-extinction as both groundbreaking science and a lightning rod for criticism.
- •Shapiro defines ancient DNA/paleogenomics: extracting DNA from ancient remains
- •Her move from academia to industry (Colossal) and why
- •Why controversial, high-visibility science attracts pushback
- •Framing the conversation around innovation vs gatekeeping
- 1:02 – 2:51
Academia’s scarcity mindset, gatekeeping, and why public communication matters
They discuss how academic incentives can discourage bold ideas and reward territorial behavior. Joe and Beth argue that podcasts and mass distribution bypass traditional gatekeepers, which can trigger additional backlash.
- •Scarcity mindset: attention and funding treated as zero-sum
- •Gatekeeping around who counts as an ‘expert’
- •Public platforms change who gets heard and why that’s threatening
- •Why Shapiro expects colleagues to criticize her for appearing on JRE
- 2:51 – 5:42
From broadcast journalism to field science: the ‘story’ that pulled her in
Shapiro describes starting in broadcast journalism and pivoting after a transformative geology/archaeology road-trip course. She explains wanting to tell deeper stories about landscapes and human impact—through science.
- •Early career in TV/radio journalism in Georgia
- •A 9-week cross-country field program changes her trajectory
- •Choosing science to better understand and communicate big narratives
- •Maintaining a communicator’s mindset through popular science books
- 5:42 – 7:09
Entering ancient DNA: clean labs, contamination, and the lure of Siberia
Shapiro explains how she found her way into ancient DNA research by meeting Alan Cooper and learning about specialized clean-room labs. The need to prevent modern DNA contamination becomes a recurring theme in the field.
- •Meeting Alan Cooper and the early days of ancient DNA labs
- •Why ancient DNA requires purpose-built clean rooms
- •Contamination risks: eyelashes, breath, touch, and lab protocol
- •Siberia as the irresistible ‘sign-up bonus’ for fieldwork
- 7:09 – 12:49
Fieldwork reality: Arctic mosquitoes, Alaska expeditions, and survival logistics
The conversation turns into vivid field stories from Siberia and Alaska—especially the extreme mosquito swarms and how researchers cope. They compare Arctic insects to Texas mosquitoes and discuss adaptations that make northern mosquitoes even more relentless.
- •Arctic mosquito intensity and protective gear (hoods/head nets)
- •Mosquito ecology: nectar feeding, reproduction without blood meals in Arctic
- •Alaska river searches for mammoth remains and sudden mosquito ‘clouds’
- •Pragmatic field lessons: DEET beats ‘natural’ repellents
- 12:49 – 23:48
The Taymyr expedition: helicopters, medical ethanol, armed visitors, and reindeer herders
Shapiro recounts a chaotic Taymyr Peninsula expedition: unreliable infrastructure, dangerous helicopter logistics, and being stuck in a glaciated site with low fossil odds. The story culminates in an encounter with armed Dolgan reindeer herders—and an unexpected diplomatic solution involving French cheese.
- •High-risk transport and improvised expedition planning
- •Realization they landed in a glaciated area with poor fossil prospects
- •Medical ethanol as lightweight ‘vodka substitute’ and camp morale
- •Dolgan community encounter: subsistence life, reindeer herding, and culture
- 23:48 – 29:58
Uncontacted peoples, Amazon danger, and LiDAR rewriting history
Joe connects subsistence cultures (Siberia, Amazon) to questions about human fulfillment and risk. They discuss violent contact history, disease-driven collapses, and how LiDAR is revealing large-scale Amazonian settlements previously underestimated.
- •Why uncontacted groups may be hostile (history of exploitation)
- •Paul Rosolie’s experiences and the danger of being ‘hunted’
- •Disease as a driver of rapid population collapse and lost cities
- •LiDAR as a tool to reveal hidden infrastructure and civilizations
- 29:58 – 37:40
Jurassic Park myths, dinosaur ‘DNA’ mistakes, and how ancient DNA really works
Shapiro explains why “bringing back dinosaurs” is largely a media trope, including early high-profile errors caused by contamination (the ‘fried chicken’ dinosaur sequences). She then outlines PCR’s impact and why ancient DNA fragments are short, damaged, and mixed with microbial DNA.
- •Jurassic Park’s influence vs the real origins of the field
- •Early ‘dinosaur DNA’ claims debunked as contamination (chicken)
- •PCR (Kary Mullis) as the enabling technology for ancient DNA
- •Why ancient DNA is fragmented and contamination-prone
- 37:40 – 49:09
Human evolution surprises: Neanderthals, Denisovans, and newly identified lineages
They cover landmark achievements like Neanderthal genome reconstruction and the Denisovan discovery from a tiny finger bone. The discussion expands to newly proposed human groups (large-skulled ‘Jularrenesis’) and why hot climates make DNA recovery difficult (e.g., Flores).
- •Neanderthal genomes and Svante Pääbo’s Nobel recognition
- •Denisovans discovered from a small fragment with huge implications
- •Newly described human lineages and constant rewriting of prehistory
- •DNA preservation limits in warm regions (Flores/Hobbit samples)
- 49:09 – 58:15
Dire wolves in the flesh: awe, ethics, containment, and ‘Jurassic Park’ comparisons
Joe describes visiting Colossal’s dire wolves—size, behavior, and the uncanny feeling of meeting an animal absent for ~10,000 years. Shapiro talks about witnessing Khaleesi’s birth and explains why the wolves will remain in controlled preserves and not be allowed to breed.
- •Joe’s first-hand impressions: size, musculature, coat, and demeanor
- •Shapiro on awe as a modern psychological scarcity and conservation motivator
- •Safety/containment: secure preserves, monitoring, and layered fencing
- •Reproduction plan: separation and contraceptives (not castration)
- 58:15 – 1:29:26
Conservation applications: genetic rescue, red wolves, and invasive-species cautionary tales
Shapiro argues Colossal’s tools are not only about de-extinction but also biodiversity protection via genetic rescue. They discuss Florida panthers as a case study, the red wolf project, and why introducing new predators to control invasives often backfires (snails in Hawaii, hypothetical honey badgers in Florida).
- •Florida panther recovery via introducing Texas panthers (genetic rescue)
- •Red wolves: hybridization realities and recovering lost diversity
- •Invasive control gone wrong: rosy wolf snail vs native Hawaiian snails
- •Why ‘add a new predator’ solutions (e.g., honey badgers) are risky
- 1:29:26 – 2:59:47
Species concepts, ancient mysteries, and ‘playing God’—the philosophical endgame
They debate what a ‘species’ even is, using examples from bears, bison, and human lineages, and why classification is a human tool rather than nature’s rulebook. Shapiro closes by reframing ‘playing God’ as unavoidable—humans already shape ecosystems—arguing the ethical imperative is to get better at stewardship and use biotechnology to reduce extinctions.
- •Species concepts: morphological vs biological vs genetic definitions
- •Hybridization as normal biology (bears, canids, humans)
- •New methods: DNA from sediments revealing unexpected mammoth/horse timelines
- •‘Playing God’ critique answered: humans already decide outcomes; biotech as repair
