Macaques and humans seem to share the strength of knowing the limits of what they know.

New Research

A Wise Monkey Knows How Little He Knows

Japanese scientists find that macaque monkeys, like humans, know the limits of their own memory

Smallmouth salamanders reproduce sexually, which may give them certain advantages.

New Research

When Is Sex Worth Going the Distance? When You’re a Salamander, Apparently

Asexual amphibians may be less equipped to handle modern threats than their sexual counterparts

Creatures so small that they had been overlooked in the past—sea urchins, Echinometra viridis, (above) the size of ping-pong balls and a diminutive species of parrotfish, Scarus iseri, were grazing algae on the reef.

These Itsy-Bitsy Herbivores Could Stage a Huge Coral Reef Rescue

Tiny parrotfish and sea urchins can take over the job of their larger cousins to keep a reef free of algae

Morphine is extracted from opium, a compound found in the seeds of the opium poppy.

America’s Long-Overdue Opioid Revolution Is Finally Here

Thanks to advances in neuroscience, researchers are beginning to disentangle powerful pain relief from addiction, overdose and death

A smartphone could help people fight depression.

How Mobile Technology Can Help Universities Combat Depression

Using sensors on smartphones and smartwatches can shed light on patients’ symptoms, even identifying ones they didn’t notice or share with counselors

Here’s What Makes Komodo Dragons So Powerful

Not only is the Komodo dragon the largest lizard in the world, its powerful claws, tail, and bite make it one of the deadliest

Standing water in urban areas is ideal breeding ground for mosquitoes that can spread dengue and other tropical diseases.

The Next Pandemic

To Fight Deadly Dengue Fever in Humans, Create Dengue-Resistant Mosquitoes

How manipulating the immune systems of mosquitoes can halt the spread of dengue virus

MIT professor Li-Huei Tsai may have a new treatment for Alzheimer's disease.

Could Flickering Lights Help Treat Alzheimer’s?

A flashy MIT study changes perspective on the disease

If only the three blind mice had enjoyed access to 21st century retinal transplant technology.

New Research

These Blind Mice Just Got a Vision Boost Thanks to a New Transplant Technique. Could Blind Humans Be Next?

Transplanting an entire piece of retinal tissue into the eyes of blind mice appears to work better than just transplanting cells

In 300 years of fundamentally altering the Earth and its climate, what have we learned?

Age of Humans

Your Guide to All Things Anthropocene

Documenting an era of manmade change

Incredible: This Underwater Spider Has an Actual Scuba Tank

The scuba spider is the only arachnid to live exclusively underwater, despite lacking gills. Its secret is a makeshift oxygen supply

The impacts from the Nimbus satellites (Nimbus-1 pictured here) made a lasting mark on meteorology and climate science that can still be felt today.

The Day the Nimbus Weather Satellite Exploded

The writer’s grandfather recalls a seminal moment in the Space Race

CAMS results for November 28 to December 14 from 2010 to 2016. Each point is direction from which a meteor was measured to approach, with red showing faster meteors and blue slower ones.

Think Big

Introducing the Global Effort to Map the Night Sky

How astronomers around the world are piecing together a patchwork quilt of celestial activity

Anna's hummingbirds have brains uniquely adapted for hovering precisely while feeding.

New Research

For Hummingbirds, the World Moves as Fast as They Do

New research shows how the hummingbird brain allows them to hover and fly precisely

Age of Humans

Video: Why Should Humans Care About Preserving the Diversity of Life on Earth?

This animation explains that humans don’t just impact the interconnected web of life—we depend on it

Caption: Six pairs of hand and footprints were discovered in 1998, including two that are small enough to have belonged to children.

New Research

Footprints Found at Ancient Hot Springs Could Represent Earliest Settlement of Tibetan Plateau

New age measurements of the footprints help pinpoint when humans first settled the highest region on Earth

This year we've seen swelling efforts to protect vast swaths of ocean. Are they scientifically sound?

Do Ocean Preserves Actually Work?

The U.S. now leads the world in protected marine areas. But are they a scientifically sound strategy?

Because Cystisoma live far from shore, scientists have just begun to study them in their natural habitat.

The Master of Disguise of the Ocean Reveals Its Secrets

A marine creature’s unusual defense is becoming perfectly clear

Abstract artist Wassily Kandinsky, who may have been a synesthete, once said: "Color is the key. The eye is the hammer. The soul is the piano with its many chords. The artist is the hand that, by touching this or that key, sets the soul vibrating automatically."

Art Meets Science

Feel the Music—Literally—With Some Help From New Synesthesia Research

How one artist created a show inspired by the neurological experience of synesthesia

Here, a Gila woodpecker peacefully eats a pyracantha berry. But don't be fooled by appearances.

Weird Animals

This Woodpecker Will Drill Into Your Skull And Eat Your Brains—If You’re a Baby Dove

Think those needle noses were only made for eating insects? Think again

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