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Why some airports keep beehives
Transport

Why some airports keep beehives

Bees visit flowers across a wide area, then bring pollen and nectar back to the hive. Testing those samples gives researchers a living survey of local plants…

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Baggage carousels are built to run either way
Transport

Baggage carousels are built to run either way

Manufacturer Daifuku offers clockwise travel as well as its standard counterclockwise layout. Even the overlapping carousel plates can be reversed to suit the…

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Triceratops horns were longer than fossils suggest
Science

Triceratops horns were longer than fossils suggest

A fossil usually preserves the horn’s bony core, not its full living covering. Triceratops also had a tough keratin sheath—the same material as your…

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Guam's introduced snakes helped erase its forest birds
History

Guam's introduced snakes helped erase its forest birds

Brown tree snakes arrived after World War II and preyed on birds that had not evolved with this predator. Native bird populations collapsed across much of the…

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Zambia's Kasanka forest hosts a temporary city of fruit bats
Science

Zambia's Kasanka forest hosts a temporary city of fruit bats

Millions of straw-colored fruit bats gather seasonally as fruit becomes available. They travel out to feed and return to a concentrated roost. The spectacular…

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Forced group chuckling is deemed highly spiritual
Myths & mysteries

Forced group chuckling is deemed highly spiritual

Laughter yoga uses deliberate laughter in a group, often until the laughter feels genuine. The practice treats shared laughter as a spiritual exercise.

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Ham the chimpanzee pulled levers in space
Transport

Ham the chimpanzee pulled levers in space

Ham learned to pull a lever when a signal light appeared, earning a food reward for the correct response. The test checked whether a trained task still worked…

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The last passenger pigeon died alone in a zoo
History

The last passenger pigeon died alone in a zoo

Martha, the last passenger pigeon, lived alone in an Ohio zoo until her death in 1914. The species had once formed flocks so vast they darkened the sky.

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Why astigmatism turns lights into starbursts
Health

Why astigmatism turns lights into starbursts

The cornea—the clear front surface of the eye—may be curved more steeply in one direction than another. That uneven shape bends light differently across the…

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Why your nose works worst in the morning
Health

Why your nose works worst in the morning

The nose and brain don’t register smells at exactly the same strength all day; smell sensitivity can shift with the body’s daily rhythms. That can make…

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Seven colored wheels supposedly spin inside you
Myths & mysteries

Seven colored wheels supposedly spin inside you

In chakra traditions, colors are assigned to different energy centers; blue is associated with the throat and communication. A “blocked” throat chakra is one…

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About one person in ten is left-handed
Health

About one person in ten is left-handed

A large 2020 meta-analysis estimated the prevalence at roughly 10.6%, with the result changing according to how handedness was defined. Writing hand,…

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Armstrong left the overshoes that made his Moon footprints behind
Transport

Armstrong left the overshoes that made his Moon footprints behind

The treaded lunar boots went over the boots built into the spacesuit. Apollo 11 left those outer overshoes on the surface along with other equipment to reduce…

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The shortest flight path can look curved on a map
Transport

The shortest flight path can look curved on a map

A flat map stretches a spherical world, so the shortest surface route between two places often appears to bend toward a pole. Stretch a string across a globe…

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Your car's color won't raise your insurance
Economy

Your car's color won't raise your insurance

An insurer cares about what a car costs to repair and how powerful it is, along with the driver’s record. A costly bumper can matter; neon-orange paint doesn’t.

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Why second-born babies are often heavier
Health

Why second-born babies are often heavier

During a first pregnancy, blood vessels supplying the uterus stretch. Researchers have proposed that this might help nutrients reach later babies, which could…

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A dental implant is basically a screw in your jaw
Economy

A dental implant is basically a screw in your jaw

The metal part is not the tooth you see: it sits in the jaw while bone fuses to its threads. Months later, a porcelain crown is attached on top.

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Tetherball has surprisingly pagan roots
Games

Tetherball has surprisingly pagan roots

Its roots have been linked to ancient Maypole traditions, though the familiar version became a schoolyard game.

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