The Biology of the Corpse
Discover what happens to the human body after life ends. Learn how forensic scientists read the early physical clocks of death, how internal biology drives decay, and how the surrounding environment shapes preservation.
Like Duolingo, but for The Biology of the Corpse. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
A short one: 9 levels across 2 sections, about 18 minutes end to end, roughly 4 days at five minutes a day. It moves through The Clock in the First Hours and The Biology of Decomposition. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in The Biology of the Corpse
- A corpse steadily loses heat toward the surrounding room temperature rather than cooling instantly
- Because cooling occurs gradually at a measurable pace, a corpse that is still warm died relatively recently
- A body eventually reaches the same temperature as the surrounding air
- When the heart stops, gravity pulls stagnant blood down into the lowest parts of the corpse
- After several hours, this pooled blood stains the tissue permanently in place
- Discoloration on the upper side of a corpse proves it rested in a different position before being moved
- Immediately at death, muscles lose nerve signaling and go limp
- As cellular energy runs out, muscle fibers cannot detach, causing the corpse to lock into stiffness
- Stiffness eventually fades away as natural decomposition breaks down muscle proteins
- Without blood pressure pushing into the skin's tiny surface vessels, blood sinks inward toward deeper vessels
- This rapid drain leaves the skin looking strikingly pale and chalky within minutes of death
- Moisture evaporating from the surface of an open eye causes a hazy, milky film within a few hours
- Corneas behind closed eyelids retain moisture and stay clear significantly longer than exposed eyes
- Corneal clouding provides an early visual estimate of the time window since death
- When circulation stops, human cells run out of oxygen and can no longer maintain their membranes
- Cell membranes rupture and spill internal digestive enzymes into surrounding tissue
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives The Biology of the Corpse the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
If an investigator touches a body in a normal room and it still feels warm, what does that mean?
Get it right to open this lesson and 8 more in the app.
Where The Biology of the Corpse takes you
- 1
The Clock in the First Hours
- Cooling, Stiffening, and Settling
- 2
The Biology of Decomposition
- Autolysis and the Microbial Takeover
- How Environment Shapes Decay
2 sections · 3 units · 9 levels. Built to play, not to enroll.
Tomo is in ChatGPT
Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.
Add Tomo to ChatGPT- What to ask
- “Make me a Tomo course on black holes.” “Turn this chat into a Tomo course.”
- What you get
- Quick questions with instant feedback, hearts and stars, ready to play in about a minute.
- Where it goes
- No sign-up to start. Connect your Tomo account and your streak carries on in the app.
You pick the voice
The Biology of the Corpse is taught in the Explain Like I'm 5 style: no big words. promise.. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start The Biology of the Corpse today.
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