Episode 118: Real bioinformaticians react to Jurassic Park

Jurassic Park at 30: ancient DNA, frog genomes and Unix

Lee Katz, Andrew Page and Nabil-Fareed Alikhan revisit clips from the 1993 film Jurassic Park in a holiday special looking at how the science has moved on in the 30 years since its release. They examine ancient DNA preservation, genome reconstruction, laboratory practice and the computer systems behind the park’s collapse. The discussion distinguishes useful introductions to genetics from storytelling shortcuts, while making clear that the hosts still enjoy the film.

Listen to Episode 118: Real bioinformaticians react to Jurassic Park on SoundCloud

In this episode

Ancient DNA and three billion instructions

The hosts begin with the animated Mr DNA tour and the premise of recovering dinosaur DNA from blood inside mosquitoes preserved in amber. They connect Michael Crichton’s premise to reports of DNA recovered from amber-trapped insects. One host recalls a study involving 16S DNA, while expressing uncertainty about its details. The important distinction is between recovering a short sequence and obtaining an entire dinosaur genome: they argue that DNA degradation makes survival over 65 million years implausible.

They appreciate the film’s acknowledgement that ancient DNA is fragmented, but question its claim of three billion genetic instructions. That number prompts a comparison with the human genome rather than acceptance as a dinosaur genome size. A search through NCBI Taxonomy provides a memorable diversion: the genomes found under dinosaurs belong to birds, not resurrected extinct species.

Filling genome gaps with frog DNA

The film’s use of complete frog DNA to fill gaps in dinosaur sequences becomes a central objection. The hosts ask why birds would not be a more logical comparison, particularly when the film itself stresses the relationship between birds and dinosaurs. They see the frog choice as serving the later plot about sex changes and failed breeding controls, rather than following that scientific argument.

The discussion extends beyond choosing a reference organism. Splicing genomes, producing a viable embryo and placing it in an ostrich egg are separate hurdles. Humanised mice provide a comparison: introducing selected human variants is not the same as turning a mouse into a person. The hosts also discuss Sanger sequencing, walking along cloned DNA and the film’s reference to gene sequencers.

Reading the laboratory set

A backdrop of nucleotide sequences prompts a question the hosts do not resolve: would a BLAST search identify a real source sequence? E. coli and lambda are suggested as possibilities, not reported matches. This leads to a brief discussion of GenBank distribution and printed sequence collections, including uncertainty over whether remembered books contained DNA or protein sequences.

The laboratory scenes offer both recognisable details and visual compromises. One screen combines a DNA sequence with what a host identifies as a protein structure. Elsewhere, a virtual-reality glove manipulates a molecular model, while protective equipment seems better suited to the computer than the extraction work. The hosts question visitors wandering into the hatchery, the separation needed for ancient-DNA work, glass-fronted fridges and unusually tidy benches. They also notice that a Mitsubishi robotic arm appears unable to reach most of the eggs.

Genetic power versus ecological responsibility

At the lunch scene, the hosts challenge Ian Malcolm’s sweeping warnings about genetic power. They point out that molecular biologists routinely clone genetic material without disaster, and object to treating the use of previous discoveries as inherently irresponsible: building on others’ work is part of science. They distinguish those arguments from questions about responsibility and commercialisation.

Conservation and de-extinction enter the discussion through condors and dodos. The panel finds a more concrete concern in the park’s artificial ecosystem, including plants chosen for appearance rather than suitability. They extend that concern to microbes: recreated dinosaurs would lack their original associated bacteria and encounter modern pathogens. The sick Triceratops illustrates the uncertainty. The hosts debate the plant explanation and note that the film does not clearly resolve its illness.

Real code and questionable system design

The computer scenes receive close inspection. Visible code appears to concern version control, requesting comments before file checkout and checking whether a revision is already checked out. The hosts recognise this as plausible code, rather than a direct explanation of how dinosaur security works. They then ask what reverting the software would mean if Dennis Nedry had written the park’s claimed two million lines of code himself.

Macintosh labels and Apple-like interfaces complicate the famous Unix claim. The hosts distinguish older Mac software from later Unix-based versions, while discussing the file-system browser as a real prototype rather than a practical navigation tool. They also argue that the immediate disaster depends on deliberate human sabotage, not simply life escaping control. Nedry’s planned 15–20-minute theft, the storm and staff shore leave supply the plot’s timing.

Frozen embryos and cinematic licence

Nedry’s embryo theft brings another round of laboratory questions: handling very cold samples without gloves, inefficient storage, and tubes labelled with dinosaur names rather than informative sample identifiers. The hosts debate whether the refrigerated can Nedry uses could keep the embryos cold for the stated 36 hours. One counterargument is that it only needs to reach the boat, where proper storage could be available; they do not establish that the device would work.

The episode closes with a tangent about Jeff Goldblum’s unexplained tattoo, drawing on an investigation by another podcast. Throughout, the hosts return to the demands of film-making: displays must be readable, sets visually interesting and the story kept moving. Their scientific and computing objections coexist with affection for the film, its animatronics and its introduction of genetics to a broad audience.

Highlights

00:02:49 — Ancient DNA quality and the film’s acknowledgement of gaps in the sequence
00:05:03 — Why three billion genetic instructions sounds like a human-genome figure
00:06:01 — Searching NCBI Taxonomy for dinosaur genomes and finding birds
00:11:06 — Could BLAST identify the nucleotide sequences used as a backdrop?
00:12:31 — Virtual-reality molecular modelling and the laboratory’s protective equipment
00:15:41 — Filling dinosaur genome gaps with frog DNA rather than bird DNA
00:28:36 — Challenging Malcolm’s warnings about the dangers of genetic power
00:35:33 — Missing dinosaur-associated microbes and exposure to modern pathogens
00:40:36 — Reading the version-control code displayed in the control room
00:53:08 — Embryo sample labels and the refrigerated can’s 36-hour claim
00:57:39 — The prototype file-system browser in the Unix scene
00:59:11 — Another podcast’s investigation of Jeff Goldblum’s unexplained tattoo

In their own words

He has PPE for the computer.

— one of the hosts, 00:13:19

Who is talking

Lee Katz (host)
Andrew Page (host)
Nabil-Fareed Alikhan (host)

Tools and resources mentioned

NCBI Taxonomy, GenBank, BLAST, Sanger sequencing, shotgun sequencing, capillary sequencing, Windows 3.1, Mac OS 9, Unix, Mitsubishi robotic arm.

Questions this episode answers

Could dinosaur DNA preserved in amber recreate Jurassic Park?

The hosts argue that DNA degradation rules out recovering a complete dinosaur genome over the timescale discussed. They distinguish reports of short sequences from amber-trapped insects from the much larger task of reconstructing an entire genome.

Why do the hosts question the use of frog DNA?

The film itself emphasises the relationship between dinosaurs and birds, so the hosts ask why bird DNA was not chosen instead. They interpret frog DNA as a plot device supporting the later failure of the all-female breeding safeguard.

What dinosaur genomes did the NCBI Taxonomy search find?

The search described in the episode found bird genomes under the dinosaur taxon. It did not uncover genomes from the extinct dinosaurs depicted in the film.

Was Jurassic Park’s Unix interface real?

The hosts describe the file-system browser as a real prototype, but criticise how slowly it navigates the file system. They also point out Macintosh labels and Apple-like interfaces elsewhere, questioning the consistency of the film’s computer depictions.

This page was written from a machine transcript of the episode and checked against it. Listen to the episode for the whole conversation.

Show notes

Andrew, Nabil, and Lee react to the bioinformatics and the science overall in the 1993 film Jurassic Park.

We looked at these YouTube clips:

More information on the secret tattoo here: <https://underunderstood.com/podcast/episode/jeff- goldblums-secret-tattoo-jurassic-park-ian-malcolm/>