North American department store retail groups report sales declined from 2018 to 2023

As part of the up to 15 pounds of seafood they consume daily, sea otters eat urchins that feed on kelp forests—sources of shelter and food to over 800 species—thereby making the marine mammal a keystone species.

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.

Streaming service Netflix's sound logo 'Tudum' was designed as a key sonic differentiator.

Located on Ross Island in Antarctica, Mount Erebus is the southernmost active volcano on Earth and features a lava lake—one of eight known worldwide as of 2026—that erupts regularly.

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

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.

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

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

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.

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.

Explore an interactive timeline of Earth's 4.5-billion-year history to visualize shifting landmasses and oceans, view the locations of significant asteroid impacts, and learn about major geological and biological events.

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

Explore the wineries of Napa Valley with an interactive map of its hundreds of wineries, vineyards, and tasting rooms.

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

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.

Explore a collection of famous literary maps, including original images from 'Treasure Island,' 'The Swiss Family Robinson, ' and 'Walden.'

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.

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

Play the role of a student as you try to navigate college and remain debt-free.

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

The final shots of the Civil War were fired in the Arctic over 2 months after the South's surrender.

See where your state ranked in an analysis of the best public school systems in the US.

Washing dishware before putting it in a dishwasher may reduce the appliance's effectiveness because it dynamically adjusts wash time and temperature based on a sensor that detects dirtiness.

Fecal transplants can help treat infections by transplanting healthy gut bacteria from a donor into a patient's gastrointestinal tract using samples of human waste, which are turned into a liquid mixture and often delivered via a colonoscopy procedure.

Humans may have as many as 100,000 to 150,000 individual hairs on our scalps, growing at a rate of roughly 1 centimeter per month.

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

Plato's famous allegory of the cave is a metaphor exploring the value of truth over ignorance.

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

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

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

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

Explore 3D models of some of the most dangerous viruses, allowing us to understand these and other pathogens in new ways.

Give your memories a place to live and explore the personal stories left by strangers, tied to specific locations, in this interactive map of the world.

Use this tool to calculate the dollar value of your parental mental load, from meal planning to coordinating after-school care, then see resources that help generate solutions.

Find out how important you are to AI tools when they generate text responses with this tool, which estimates the weights of people's names.

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

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

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.

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.

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