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DebunkedThe PolygraphThe instrument popularly called a lie detector, which records breathing, blood pressure, pulse and skin conductance dur…

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The library

Capsules

1,028 capsules, each one classified by the strength of its evidence.

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
Filtered byTheoryecologyClear all

Results

Showing 1 to 4 of 4

NewestMost votedA to Z
Theory

Optimal Foraging Theory

The proposal that animals forage in ways that maximise net energy gained per unit time, because selection favours whatever feeding behaviour leaves…

byCapsule
0 votes0 reviews
Aug 4, 2026
Theory

Life History Theory

The framework that treats an organism's schedule of growth, reproduction and death as an evolved allocation of limited resources, subject to…

byCapsule0 votes0 reviewsAug 4, 2026
Theory· Scientific

Keystone Species

A keystone species is one whose effect on its ecosystem is disproportionately large relative to its abundance. The concept reorganised how ecologists…

byCapsule0 votes0 reviewsAug 3, 2026
Theory· Scientific

The Theory of Island Biogeography

The theory of island biogeography explains how many species an island will hold, and why. Developed in the 1960s, it proposes that the number of…

byCapsule0 votes0 reviewsJun 22, 2026