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A scarlet macaw

14 Fun Facts About Parrots: They Can Sing, Use Tools and Live a Long, Long Time

And one species can even weigh as much as a house cat

Why aren't there freshwater seals or dolphins in the Great Lakes?

Why Aren't Dolphins in the Great Lakes? And More Questions From Our Readers

You’ve got questions. We’ve got experts

The Aria Resort & Casino, a striking pair of curved buildings on the Las Vegas Strip, bills itself as eco-friendly and water-efficient.

Las Vegas Is Going All In on Its Water Conservation Plan

As the Southwest dries, can a city notorious for excess find a way to survive with less?

The flowers of the toromiro

How Rapa Nui Lost a Tree, Only to Have It Sprout Up Elsewhere

Before the toromiro disappeared from the island, at least two men grabbed seeds from the last remaining plant and brought them home

About halfway between the Greek cities of Corinth and Lechaio, the area around Corinth’s ancient port is tectonically active. That makes the area even more scientifically precious. While many archaeological sites from millennia ago have sunk beneath rising seas, centuries of tectonic uplift have preserved this spot. Parts of the ancient port now sit above sea level, including the inner harbor, where boats likely once berthed in a protected channel.

Ancient Greece’s Biggest Port Is Older Than We Thought

Archaeological discoveries add 500 years to the history of Corinth's main harbor

An elephant seal pup on South Georgia Island

Why Did Seals and Sea Lions Never Commit to a Life Fully at Sea?

While whales moved from living on land to an existence immersed in water, pinnipeds embraced an amphibious lifestyle

Leaves and roots analyzed by botanist Mason Heberling

These Researchers Are Digging Into the Understudied Science of Roots

After centuries of neglect, botanists are using new techniques to understand roots

A forest in Minnesota

In Minnesota, Researchers Are Moving Trees Farther North to Save Forests

As the world warms, trees in such forests will no longer be adapted to their local climates. That's where assisted migration comes in

The otherworldly form of the octopus has inspired millennia of fear and awe from humans.

Ten Wild Facts About Octopuses: They Have Three Hearts, Big Brains and Blue Blood

These bizarre creatures have been around for hundreds of millions of years, and for humans, they’ve inspired horror, admiration and culinary prestige

A total solar eclipse as seen from Kentucky in 2017

How Ancient Civilizations Reacted to Eclipses

Communities may have thought the celestial events were messages from the gods, a reason to abandon a settlement or a cue to end a war

Hand washing is one of the simplest ways to prevent disease transmission.

The Dirty Secret About How Our Hands Spread Disease

The human hand is an incredible tool—and a deadly threat

ArTreeficial is a solar-powered, self-cleaning, artificial-intelligence-driven “tree” that entices the spotted lanternfly and eliminates the bug using an electronic mesh.

This High Schooler Invented an A.I.-Powered Trap That Zaps Invasive Lanternflies

Using solar power, machine learning and her family’s patio umbrella, 18-year-old Selina Zhang created a synthetic tree that lures the destructive species

A silver-washed fritillary butterfly rests on a flower as the sun rises, casting a warm glow on both lifeforms.

See Incredible Insects Up Close With These Creepy-Crawly Photos

Bug out with 15 shots of insects and arachnids of all shapes and sizes from the Smithsonian Magazine Photo Contest

Frank Oppenheimer

How the Atomic Bomb Set Brothers Robert and Frank Oppenheimer on Diverging Paths

For one of them, the story ended with a mission to bring science to the public

The Whirlpool Galaxy (also known as M51), located 31 million light-years from Earth, is a particularly radiant object seen during the Messier marathon. This image was captured by the Hubble Space Telescope—skywatchers looking through a backyard telescope or binoculars would see the galaxy in far less detail.

What It Takes to Complete the Ultimate Skywatching Endurance Challenge

The "Messier marathon" prompts space hobbyists to spot 110 celestial objects in one night, and the best time to try it is in March

Cinnabar powder covered the remains of 20 people, mostly women, in this megalithic tomb at the site of Valencina, Spain.

Ancient Iberians Ingested Red Dust Loaded With Mind-Altering Mercury

Bones in Spain suggest a mercury-rich mineral used for art and hallucinogenic trips poisoned a community 5,000 years ago

Minerals and algae form patterns in the scalding hot water at Grand Prismatic Spring in Yellowstone National Park's Midway Geyser Basin. Yellowstone National Park has more than 10,000 thermal features, making it the largest concentration of active geysers in the world.

How a Microbe From Yellowstone's Hot Springs Could Help Feed the World

A Chicago startup has turned a fungus found by NASA into a protein-packed food

A drawing of the aurora observed from Nagoya, Japan, on September 17, 1770. The written description also notes its intensity: “as bright as a night with a full moon.”

How Ancient Texts Can Shed Light on Auroras

Documenting episodes of the phenomenon thousands of years ago may help us predict damaging solar storms in the future

Want to know what a sand tiger shark has been eating? Look to its teeth.

What Centuries-Old Shark Teeth Reveal About Brazil's Ocean

Researchers examined the remnants of a 13th-century fishing site to get a picture of how the marine ecosystem has changed

Roger Federer hits a forehand shot at Wimbledon. The tennis great has called his racket an extension of his arm.

How Did Humans Evolve to Use Everyday Tools?

An anthropologist explains why we experience many objects, from tennis rackets to cars, as extensions of our bodies