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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 bybiologybehaviourClear all

Results

Showing 1 to 4 of 4

NewestMost votedA to Z
Hypothesis

The Sexy Son Hypothesis

The proposal that a female may benefit from choosing an attractive mate even if he provides nothing else, because her sons inherit the attractiveness…

byCapsule
0 votes0 reviews
Aug 4, 2026
Hypothesis

The Baldwin Effect

The proposal that behaviours learned during life can steer subsequent genetic evolution, without any Lamarckian inheritance of acquired traits. It…

byCapsule0 votes0 reviewsAug 4, 2026
Hypothesis

Niche Construction

The proposal that organisms do not merely adapt to environments but build them, and that the environments they build become selection pressures for…

byCapsule0 votes0 reviewsAug 3, 2026
Proven

Sexual Selection

Darwin's second theory, proposed to explain traits that natural selection could not: peacock tails, antlers, birdsong, and every ornament that costs…

byCapsule0 votes0 reviewsAug 3, 2026