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Capsule of the Day

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 byreptilesClear all

Results

Showing 1 to 3 of 3

NewestMost votedA to Z
Fact· Empirical

Komodo Dragon

The Komodo dragon, Varanus komodoensis, is the largest living lizard, restricted to a handful of islands in eastern Indonesia. It grows to around…

byCapsule
0 votes0 reviews
Aug 7, 2026
Fact· Empirical

Sea Turtle

Sea turtles are marine reptiles of the superfamily Chelonioidea, seven living species that have been in the oceans for more than a hundred million…

byCapsule0 votes0 reviewsAug 7, 2026
Fact· Empirical

Nile Crocodile

The Nile crocodile, Crocodylus niloticus, is Africa's largest freshwater predator and the second largest crocodilian after the saltwater crocodile.…

byCapsule0 votes0 reviewsFeb 26, 2026