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This interactive website features nearly 40,000 photos from Wikipedia for you to create visual mosaics with.

Metamorphosis evolved over millions of years as species that hatched as smaller versions of adults started exhibiting genetic mutations that differentiated juvenile and adult bodies.

Pregnancy makes someone more attractive to the mosquito species that transmits malaria.

Researchers generally group gut bacteria into six different categories, with varying amounts of these microbes residing in different parts of the digestive tract.

'Bibliotherapy' is of increasing interest as a way to improve mental health and help navigate complex life situations—with people immersing themselves in the experiences of fictional characters or nonfiction and self-help books to find relief and gain personal insights.

'Tulip mania,' the 1630s Dutch craze where rare bulbs were briefly traded like luxury assets, may have been the first financial bubble—and it still shapes markets today.

Watch a visualization of what it would look like to move along Earth's surface as fast as the International Space Station, or about 23 times the speed of sound.

Sea stars are invertebrates—they lack a backbone—and while most exhibit pentametric radial symmetry due to having five arms radiating from a central disk, some can possess more than 40.

Watch Bruce Springsteen's 1985 performance of Woody Guthrie's 'This Land Is Your Land,' which he calls 'the greatest song ever written about America.'

Watch the many different civilizations around the Mediterranean shift power from the year 2500 BCE to 0 BCE in this animated map.

Explore how the most commonly used words in the English language have changed from the 1950s to 2023.

Examine this captivating animation 'building' a human—illustrating the roughly 40 weeks of fetal development.

Explore the history of American restaurants through an archive of menus dating back to the early 1800s.

Watch what would happen if you literally had all the money in the world.

Listen to audio clips from Hoover, a harbor seal named after its insatiable appetite, who learned to say English phrases such as 'hello there' and 'come over here.'

Author David Foster Wallace's 'This Is Water' speech provides guidance for adulthood.

Here are some tips from Pew Research to help you distinguish between a good poll and an unreliable one.

Rapid intensification is the increase in a hurricane's sustained wind speed by at least 35 miles per hour within 24 hours, which can strengthen it by up to two categories.

Relax to a livestream of brown bears chilling in Katmai National Park in Alaska.

Explore how temperatures compare to historical averages in cities worldwide with this interactive global monitor.

Explore an interactive forecast of the future of the universe, from the return of Halley's Comet to the last light in the cosmos.

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

Cats have a mutation that prevents them from tasting sweetness, and goldfish rank among the world's supertasters.

The Aztec Empire ruled over 80,000 square miles of central Mexico for nearly a century—until a small band of Spanish conquistadors brought it down in 1521.

Emanuel Leutze's painting 'Washington Crossing the Delaware' is one of the defining images of the Revolutionary War.

Robert Smalls escaped slavery by piloting a stolen Confederate ship to freedom, then became an influential Black political leader during Reconstruction.

The Berlin Wall physically separated East and West Berlin for nearly three decades, preventing East Germans from fleeing to the West and earning the nickname 'the Iron Curtain.'

'Golden blood' is the rarest blood type in the world—fewer than 50 people are known to have it.

Watch a two-year time-lapse of a pinecone seed transforming into a pine tree.

The US jobs projected to shrink the fastest over the next decade include typists and word processors.

Explore (and debunk) the world's most contagious misconceptions—from the 5-second rule to sugar rushes—on this interactive site. Click on each misconception for further evidence.

Explore Lewis and Clark's 8,000-mile journey in Google Earth.

Explore a detailed map of Odysseus' fictional journey from 'The Odyssey.'

A dog's nose can be up to 100,000 times more sensitive than a human's, and each possesses a secondary organ for smelling, which helps learn about other dogs when they sniff each other's butts.

Simulations suggest that a paper airplane launched from the International Space Station would maintain its orientation and gradually descend for 3.5 days before chaotically tumbling down and burning up.

The world's largest waterfall is in the ocean and is more than three times the height of Angel Falls, the largest waterfall on land.

The animatronic shark from 'Jaws' was a complex machine called 'Bruce.'

Hear 50 years of iconic hip-hop samples, the genre's foundational looped tracks.

Watch footage from the moments the Titanic wreck was discovered by a joint US-French research team in 1985.

Light takes approximately eight minutes to travel from the sun's surface to Earth, but it takes thousands of years to reach the star's surface from its core—a distance more than 200 times shorter.