---
name: Sharks
slug: sharks
type: organism
status: running
version: 450.0.0
released: "~450000000 BCE"
maintainer: evolution
dependencies:
  - ocean
  - apex predator instinct
  - cartilage
  - electroreception
  - fear (human, ambient)
license: Cambrian Commons v1.0
tags:
  - fish
  - predator
  - misunderstood
  - ancient
  - teeth (renewable)
---

Sharks

What it actually is

A cartilaginous fish that has been quietly solving the problem of being alive for longer than trees have existed, and which requires no updates.

How it works

Sharks run on a distributed sensory architecture that most organisms could not afford to license. Core systems include:

The lateral line: detects pressure changes in water. Effectively a sixth sense. Shipped standard.
Ampullae of Lorenzini: electroreceptors that detect the bioelectric fields of prey. Can locate a heartbeat buried in sand.
Olfaction: capable of detecting blood at one part per million. This is not marketing copy. This is the actual spec.
Teeth (renewable): not attached to bone. Replaceable on a rolling conveyor system. A shark may produce 30,000 teeth in a lifetime. teeth as infrastructure.

Locomotion is handled by a heterocercal tail. Buoyancy in many species is maintained by a large, oil-rich liver rather than a swim bladder, because the liver decided to pull double duty and nobody stopped it.

Features

Feature	Notes
Electroreception	~450 million years ahead of schedule
Dermal denticles	Skin that reduces drag and causes lacerations on contact
Slow reproduction	1 to 12 pups per cycle, long gestation. High-quality, low-volume output
Diverse form factor	500+ species. From 20cm (dwarf lanternshark) to 12m (whale shark)
Apex integration	Regulates reef ecosystems by culling the weak and maintaining population balance

Known bugs

Public relations: consistently misrepresented by Jaws (1975). The film shipped without a patch and the damage persists in production.
Finning vulnerability: no defense against humans with boats and economic incentives. A significant oversight in the threat model.
Bycatch susceptibility: not designed for nets. Performs poorly when caught accidentally in systems it was not built for.
Slow recovery rate: low reproductive output means population crashes do not self-correct quickly. The system is not fault-tolerant at scale.

Error codes

SHARK_ENCOUNTER_001  // Mistaken identity. Target resembles seal silhouette.
SHARK_ENCOUNTER_002  // Investigatory bite. Returned no useful data. Aborted.
SHARK_ENCOUNTER_003  // Provoked. See: spearfishing near open wounds.
HUMAN_ERROR_001      // User entered water during known feeding aggregation.

"It didn't even eat me. It just looked at me and left. I felt evaluated." — recovered diver, unverified report

Edge cases

Greenland shark (Somniosus microcephalus): reaches sexual maturity at approximately 150 years old. Oldest known vertebrate. Lives under Arctic ice. Moves very slowly. Has resolved the question of longevity in a way that raises uncomfortable questions about ambition.
Cookiecutter shark: small. Removes precise cylindrical plugs of flesh from much larger animals. Confidence wildly disproportionate to size.
Nurse shark: mostly sedentary. Often used as a counterexample. Still a shark. Do not sit on one.

FAQ

Q: Are sharks dangerous to humans? Statistically, less so than vending machines. Sharks kill fewer than 10 humans per year globally. Humans kill approximately 100 million sharks per year. The math is not ambiguous.

Q: Do sharks ever stop swimming? Some must keep moving to breathe. Others can rest. The mythology of the shark that never stops is projection.

Q: Why are they still here? Because the design was correct the first time.

drafting spec…