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.

Computer scientists first started trying to optimize dating using computers in the 1950s.

Explore the history, structure, and species of Australia's Great Barrier Reef with this interactive journey narrated by Sir David Attenborough.

You may be better at spotting a lie when listening to a speaker's voice inflections rather than watching for facial and body cues.

Between 2002 and 2012, at least 12 people were killed in the Philippines in incidents related to off-key karaoke singing of Frank Sinatra's 'My Way.'

Experience a century of America's healthcare advances with this medical visualization, tracing a sampling of healthcare innovations from head to toe.

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

Watch 4-plus decades of Pixar's opening logos.

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

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

In 1962, the US detonated a nuclear weapon in space, which produced an electromagnetic pulse that disabled three low Earth orbit satellites and damaged electrical equipment in Hawaii.

The tallest tsunami in recorded history was 524 meters (1,720 feet) high—taller than the Empire State Building—and occurred in Lituya Bay, Alaska, in 1958 after an earthquake dislodged a rockface into the water.

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

'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.

Male pattern baldness accounts for more than 95% of hair loss in men and is characterized by thinning hair, hair loss, and a receding hairline.

Experience 14 billion years of important moments in world history with this scrollable interactive timeline.

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

If the moon were less than one-twelfth its current distance from Earth, the planet's tidal forces would overcome the moon's internal gravity, tearing it apart and forming a ring of debris.

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

Joan Didion interviewed The Grateful Dead in 1967, before they became music icons.

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

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

There are 'YouTube camps' that teach children how to create content for the video platform.

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

The collapse of gas bubbles in the joint synovial fluid causes 'cracking' knuckles.

Lake Sørvágsvatn sits about 32 meters (105 feet) above sea level, but the taller surrounding cliffs create an optical illusion that makes it appear to float much higher above the ocean.

See a breakdown of how some of the most common food items are traded across the globe, including the key trade relationships for each item.

Miracle berries make things that normally taste acidic or sour, such as lemons, taste sweet, like sugar-coated candy, by binding a special protein called miraculin to taste buds.

Apeirophobia is the fear of everlasting life and may stem from the human brain's inability to conceptualize the concept of anything happening beyond what it can project out, such as the concept of an infinite life.

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.

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.

All rainbows are 'raincircles' caused by water droplets separating white sunlight into a spectrum of colors, but Earth's surface blocks the bottom half of the circle from our line of sight.

George Lucas used Joseph Campbell's 'hero's journey,' a narrative structure that encompasses the common characteristics of multiple cultures' mythologies, to revise 'Star Wars.'

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

Watch President John F. Kennedy's speech on going to the moon

On planets in systems with two stars, such as the fictional Tatooine from 'Star Wars,' observers would see overlapping rainbows and double rainbows.

Watch Dr. Laurence Peter explain his 'Peter Principle,' which states that people are promoted to their level of incompetence and explains why bosses aren't always good at their jobs.

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.

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

The average banana produces one positron—the antimatter counterpart to an electron—every 75 minutes as its trace amounts of radioactive potassium decay.