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Science & Nature Fact-Checks

Science and nature fact-checks for claims about space, biology, animals, memory, senses, and physics. These pages focus on the exact wording of popular myths, explain the evidence burden, and distinguish a useful shortcut from a factual claim.

Home › Fact-Checks › Science & Nature
34 fact-checks
24 debunked
10 verified true
FALSE
Humans have exactly five senses
97% confidence 445 views
→ TRUE
Honey never spoils and has been found edible in ancient Egyptian tombs
97% confidence 389 views
→ TRUE
Australia is wider than the moon
99% confidence 376 views
→ TRUE
Octopuses have three hearts and blue blood
99% confidence 370 views
→ TRUE
Honey never expires or spoils
95% confidence 364 views
→ FALSE
Goldfish have a 3-second memory
97% confidence 361 views
→ FALSE
Bats are completely blind
99% confidence 360 views
→ FALSE
Lightning never strikes the same place twice
99% confidence 356 views
→ FALSE
Antibiotics are effective against viral infections
99% confidence 345 views
→ FALSE
Bulls are enraged by the color red
98% confidence 334 views
→ FALSE
Diamonds are formed from compressed coal
94% confidence 318 views
→ FALSE
The Great Wall of China is visible from space
98% confidence 269 views
→ TRUE
Octopuses have three hearts
99% confidence 56 views
→ FALSE
The tongue has different zones for different tastes
97% confidence 56 views
→ TRUE
Bananas are berries but strawberries are not
97% confidence 55 views
→ TRUE
Sharks existed before trees
96% confidence 52 views
→ TRUE
The Eiffel Tower gets taller in the summer
98% confidence 52 views
→ FALSE
Goldfish have a three-second memory
97% confidence 50 views
→ TRUE
Honey never spoils if stored properly
95% confidence 49 views
→ FALSE
Bulls get angry when they see the color red
97% confidence 48 views
→ FALSE
Adults grow a completely new skeleton every ten years through cell replacement
90% confidence 44 views
→ FALSE
Bats are blind
99% confidence 43 views
→ FALSE
A penny dropped from the Empire State Building can kill a person
96% confidence 41 views
→ FALSE
Glass is a liquid that flows slowly over time, which is why old windows are thicker at the bottom
97% confidence 36 views
→ FALSE
Ostriches bury their heads in the sand to hide from predators
98% confidence 35 views
→ FALSE
Different areas of your tongue detect different tastes exclusively
98% confidence 32 views
→ FALSE
Chameleons change color primarily to camouflage with their surroundings
90% confidence 32 views
→ FALSE
Toilets flush in the opposite direction in the Southern Hemisphere due to the Coriolis effect
92% confidence 31 views
→ FALSE
You can see individual stars' true colors with the naked eye the same as in telescope photos
92% confidence 14 views
→ FALSE
Einstein developed the theory of relativity entirely alone with no outside input
95% confidence 13 views
→ FALSE
Cats always land on their feet no matter what
95% confidence 13 views
→ FALSE
Genetically modified foods currently sold are unsafe to eat
90% confidence 12 views
→ TRUE
The Sahara Desert was once a lush green landscape
92% confidence 12 views
→ FALSE
The Coriolis effect determines which way water drains in your sink
92% confidence 12 views
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