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Truth Classification

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Theory
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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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FactTardigrade
FactMonarch Butterfly
FactSpider

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The library

Capsules

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

All1,028 Fact599 Proven130 Theory89 Hypothesis71 Contested90 Debunked48

geography236 biology88 physics67 history54 medicine45 astronomy33 psychology26 mathematics26 chemistry20 engineering20 astrophysics19 neuroscience19 anthropology18 art18

Filtered byFact marine Clear all

Results

Showing 1 to 11 of 11

Newest Most voted A to Z

Fact· Empirical

Seahorse

Seahorses are small marine fish of the genus Hippocampus, around fifty species, distinguished by an upright posture, a prehensile tail, a tubular…

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

Orca

The orca, Orcinus orca, also called the killer whale, is the largest member of the dolphin family and the most widely distributed mammal on Earth…

byCapsule0 votes0 reviewsAug 7, 2026

Plankton

Organisms that drift in water rather than swimming against currents. They include the base of the marine food web and produce a large share of the…

byCapsule0 votes0 reviewsAug 5, 2026

The Deep Sea

The ocean below roughly 200 metres, where sunlight fails. It is the largest habitat on Earth by volume, it is under extreme pressure and permanent…

byCapsule0 votes0 reviewsAug 5, 2026

Coral Reefs

Structures built by colonial animals from calcium carbonate, occupying a tiny fraction of the ocean floor and supporting a very large share of its…

byCapsule0 votes0 reviewsAug 5, 2026

Fact· Empirical

Octopus

Octopuses are eight-armed cephalopod molluscs, around three hundred species, found in every ocean. They have three hearts, blue blood, no skeleton,…

byCapsule0 votes0 reviewsMay 28, 2026

Fact· Empirical

Blue Whale

The blue whale, Balaenoptera musculus, is the largest animal known to have lived, larger than any dinosaur yet described. It eats one of the smallest…

byCapsule0 votes0 reviewsApr 14, 2026

Fact· Empirical

Dolphin

Dolphins are toothed whales of the family Delphinidae and several river families, around forty species. They echolocate, they call each other by name…

byCapsule0 votes0 reviewsMar 18, 2026

Fact· Empirical

Great White Shark

The great white shark, Carcharodon carcharias, is the largest predatory fish, reaching about six metres. It is warm-blooded in a limited and…

byCapsule0 votes0 reviewsFeb 14, 2026

Fact· Empirical

Penguin

Penguins are flightless seabirds of the southern hemisphere, around eighteen species, which gave up flight in the air for flight underwater. They are…

byCapsule0 votes0 reviewsFeb 5, 2026