Bananas are berries, but strawberries aren’t.
In botany, a berry is a fruit that develops from a single flower with one ovary — bananas qualify, strawberries don’t.
Octopuses have three hearts.
Two pump blood to the gills, and one pumps it to the rest of the body — and it can stop when they swim.
Honey can last for thousands of years.
It’s naturally low in water and acidic, which makes it hard for microbes to grow.
A day on Venus is longer than a year on Venus.
Venus rotates so slowly that it takes longer to spin once than to orbit the Sun.
There are more possible chess games than atoms in the observable universe.
The branching possibilities explode so fast that the total number of unique games becomes astronomically huge.
Sharks existed before trees.
Sharks show up in the fossil record far earlier than the first true trees.
Your stomach acid could dissolve metal.
It’s strong enough to break down food aggressively — your stomach protects itself with a thick mucus lining.
Some turtles can breathe through their butts.
Certain species can absorb oxygen through specialized tissue in the cloaca, especially in cold water.
Wombats produce cube-shaped poop.
Their intestines shape it that way — the cubes are less likely to roll, which helps with territory marking.
The Eiffel Tower can grow in summer.
Heat makes the metal expand, so it can become taller by several inches.
Cows form close friendships.
They show reduced stress when paired with preferred companions.
Your body “glows” (very faintly).
Human cells emit tiny amounts of light from metabolic reactions — too dim for our eyes to see.
A group of flamingos is called a flamboyance.
One of the most accurate collective nouns ever.
Butterflies taste with their feet.
They have taste receptors on their legs to help identify plants and food sources.
Some metals are so reactive they’re stored in oil.
Elements like sodium can react violently with water or moisture in air.
The Moon is drifting away from Earth.
It moves outward a few centimeters per year due to tidal interactions.
Sea otters hold hands while sleeping.
They sometimes link up to avoid drifting apart in the water.
You can’t hum while holding your nose.
Try it — humming requires air to pass through your nasal passages.
There’s a “silent” letter in the word ‘queue’… and almost all of them are silent.
Only the Q is doing meaningful work.
Some jellyfish are biologically ‘immortal’.
One species can revert to an earlier life stage under stress, potentially repeating its cycle.
Scotland has hundreds of words for snow.
Different terms describe different kinds of snow and conditions (depending on dialect and region).
There are lakes under Antarctica.
Hidden beneath ice are subglacial lakes kept liquid by pressure and geothermal heat.
An octopus can taste with its arms.
Its suckers have chemoreceptors that help it explore and identify objects.
Lightning is hotter than the surface of the Sun.
A bolt can reach temperatures far above the Sun’s photosphere.
Some rocks can bend — slowly.
Over long timescales under heat and pressure, rock behaves like a very viscous material.
There’s a species of fungus that turns ants into ‘zombies’.
It can alter an ant’s behavior to spread its spores more effectively.
A “cloud” can weigh over a million pounds.
A typical cumulus cloud holds a massive amount of water droplets spread out in the air.
Pineapples take around two years to grow.
They’re a slow-growing plant — one fruit can take many months to mature.
The heart of a shrimp is in its head.
It’s located in the cephalothorax, near the head region.
Your eyes have a blind spot you don’t notice.
Your brain fills in missing visual data where the optic nerve exits the retina.