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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 byFactzoologyClear all

Results

Showing 21 to 34 of 34

NewestMost votedA to Z
biology
Fact· Empirical

Bald Eagle

The bald eagle, Haliaeetus leucocephalus, is a large fish-eating raptor of North America, the national bird of the United States, and the standard…

byCapsule
0 votes0 reviews
biology
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 reviews
biology
Fact· Empirical

Lion

The lion, Panthera leo, is the only truly social cat and the second largest after the tiger. It once ranged from southern Africa through the Middle…

byCapsule0 votes0 reviews
biology
Fact· Empirical

Honey Bee

Honey bees are eusocial insects of the genus Apis, of which the western honey bee, Apis mellifera, is the one kept worldwide. They communicate the…

byCapsule0 votes0 reviews
biology
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 reviews
biology
Fact· Empirical

Elephant

Elephants are the largest living land animals, and there are three species rather than the two most references still give. They have the longest…

byCapsule0 votes0 reviews
biology
Fact· Empirical

Tiger

The tiger, Panthera tigris, is the largest living cat, a solitary ambush predator of Asian forest, grassland and mangrove. It occupies something like…

byCapsule0 votes0 reviews
biology
Fact· Empirical

Giant Panda

The giant panda, Ailuropoda melanoleuca, is a bear that eats bamboo. That sentence contains the whole problem: it has the digestive system of a…

byCapsule0 votes0 reviews
biology
Fact· Empirical

Domestic Cat

The domestic cat, Felis catus, is the most numerous small carnivore on Earth, with something over six hundred million individuals. It is also barely…

byCapsule0 votes0 reviews
biology
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 reviews
biology
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 reviews
biology
Fact· Empirical

Giraffe

The giraffe is the tallest living land animal, at up to about five and a half metres. Almost everything distinctive about it follows from that…

byCapsule0 votes0 reviews
biology
Fact· Empirical

Kangaroo

Kangaroos are large marsupials of the family Macropodidae, endemic to Australia and New Guinea. They are the only large animals that hop as their…

byCapsule0 votes0 reviews
biology
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 reviews
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