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How to Make Sense of Dinosaur Variation

Paleontologist Jordan Mallon describes how he figured out how many Anchiceratops species actually existed

The known skeleton of Juratyrant (black outline) compared to the dinosaur Guanlong for size. The scale bar is one meter.

England’s Jurassic Tyrant

Meet the mysterious small predators that set the stage for the later rise of more imposing tyrants

A photograph (A) and outline (B) of the human-like drawing

Oldest American Rock Art Found in Brazil

The petroglyph, with a head, hands and “oversized phallus” is around 10,000 years old

A polka-dot Triceratops in Jordan, Montana

Dinosaur Sighting: Polka-Dot Triceratops

This week we meet a dinosaur that looks as if a clown exploded all over it

Wildlife corridors allow animals to safely cross urban areas.

Do Wildlife Corridors Really Work?

A new crowd-sourced project aims to identify and evaluate pathways that connect bits of wildlife habitat

Alan Turing’s Prediction About Patterns in Nature Proven True

With nothing but numbers, logic and some basic know-how, the inventor of the Turing Test explained how to make a stripe

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Whose Tooth is That?

Smithsonian paleontologist Matthew Carrano explains how to identify dinosaurs from isolated teeth

The microwave field around the objects without (left) and with the cloaking material (right).

Scientists Move Closer to Creating an Invisibility Cloak

As far as the microwaves were concerned, the 7-inch-long tube did not exist — is true invisibility that far away?

A silhouette of the dinosaur Nemegtomaia barsboldi, indicating the dinosaur's bones and the nest it was sitting on. Much of the skeleton was lost to beetles.

When Beetles Ate Dinosaurs

Even the world’s most formidable consumers eventually became food themselves

A new study involving lab mice could bring a breakthrough in treating Alzheimer's.

Alzheimer’s Disease Advance

There are reasons to be very positive about this result, but also reasons to be very cautious

A very wrinkly dinosaur outside California's Jurupa Mountains Discovery Center

Dinosaur Sighting: Wrinkles

A reader spots what may be the wrinkliest dinosaur of all time

To go backward in time, start at the far right side of this Cosmic Web poster, which represents the universe as it is today, scattered with galaxies. As you move to the left, you see earlier stages of the universe in which dark matter—a mysterious substance astronomers can detect only indirectly—was structured as webs and filaments. Before that, closer to the Big Bang, dark matter was dominated by tides and voids.

The Best Science Visualizations of the Year

Browse through the winning images that turn scientific exploration into art

A fruit fly

Anti-Gravity Machine for Levitating Fruit Flies

A powerful magnetic field counteracted Earth’s gravity and disrupted gene expression during development

A restoration of Lambeosaurus magnicristatus, a dinosaur once thought to represent the male form of Lambeosaurus lambei, but now known to be a distinct species.

Intimate Secrets of Dinosaur Lives

Scientists are searching for dinosaur sex differences in features like size, ornamentation and bone structure—not the bits actually used during mating

Baby, we're pair-bonded for life.

Geeky Gifts for Your Valentine

Having trouble finding a gift that matches the brilliance of your Valentine? We’ve got the solutions

Did sexual selection cause sauropods, such as this Barosaurus at the Natural History Museum of Utah, to evolve ludicrously long necks?

Sex and Dinosaur Necks

Did competition for mates drive the evolution of the enormous, long-necked sauropods?

Otavia is globular or ovoid in shape.

Oldest Animals Ever Discovered

The sponge-like organisms date back to about 760 million years ago, extending the known time span of animals by 17 percent

The backside of Diplodocus, photographed at the Utah Field House of Natural History

How Did the Biggest Dinosaurs Get it On?

Of all the dinosaur mysteries, how dinosaurs like the 23-ton Apatosaurus mated is one of the most perplexing

A restoration of Hypselosaurus, a sauropod dinosaur which may have laid some of the eggs found in Cretaceous rock of Southern France.

Who Was the First to Discover Dinosaur Eggs?

Despite an immense wave of publicity heralding the discovery of dinosaur eggs in 1923, French paleontologists had discovered them decades earlier

The winged albatross

The Wandering Albatross and Global Warming

The giant oceanic birds are producing more and plumper chicks, at least for now

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