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Science & Tech

Japanese spider crab
10 Animals With Evolutionary Traits Out of a Nightmare

From frogs that give birth through their mouths to crabs with six-foot legs, these animals prove that truth is stranger than fiction.

© Rixie/Fotolia
Charles Darwin, carbon print photograph by Julia Margaret Cameron, 1868.
Courtesy of the International Museum of Photography at George Eastman House, Rochester, New York
What Darwin Got Right (and Wrong) About Evolution

 Just how accurate were Darwin’s writings in describing how life on Earth evolved?

Courtesy of the International Museum of Photography at George Eastman House, Rochester, New York

Popular

  1. 9 Articles That Explain the Meaning of Life
    Spiral Galaxy type Sa-Sb or Sa/Sb in the constellation Virgo. The majestic Sombrero Galaxy Messier 104 (M104) or NGC 4594. The team took six pictures of the galaxy, stitched them together to create the final composite image. Photo from May-June 2003

  2. How Einstein Developed the Theory of Relativity
    Albert Einstein

  3. 6 of the World's Deadliest Natural Disasters
    In this aerial photo, structures are damaged and destroyed October 15, 2005 in Balakot, Pakistan. It is estimated that 90% of the city of Balakot was leveled by the earthquake. The death toll in the 7.6 magnitude earthquake that struck northern Pakistan on October 8, 2005 is believed to be 38,000 with at least 1,300 more dead in Indian Kashmir. SEE CONTENT NOTES.

  4. The History of Technology Timeline
    Abstract vector hi speed internet technology background

  5. 6 Reasons to Love Cephalopods
    coconut octopus underwater, amphioctopus, cephalopod, indonesia

Editor's Picks

Artist's reconstruction of Saccorhytus coronarius, based on the original fossil finds. The actual creature was probably no more than a millimeter in size.
The Oldest Human Ancestor
In 2017, scientists identified fossils of a primitive sea creature they say is the oldest known ancestor of a wide range of animals, including humans.
White goat with blue sky. Farm animal
Which Animal Is the Smartest?
A puzzle only a human animal can solve. (Probably.)
Concept of human evolution from ape to man. Man evolution. Development progress, primate growth, ancestor and mankind, caveman and neanderthal mammal generation. Neanderthal and monkey. Raster version
Just How Old Is Homo sapiens?
A new study suggests that our species is much older than we thought.
Programming computer abstract
Influential Computer Programming Languages
Learn how to speak computer.
Shot of a woman drinking a glass of water at home. Drink sip hydration
How Much Water Should a Person Drink in a Day?
On average, women need to consume about 11 cups of water to stay hydrated each day, while men require approximately 15 cups.
Remarkable new details of Pluto's largest moon Charon are revealed in this image from New Horizons' Long Range Reconnaissance Imager (LORRI), taken late on July 13, 2015 from a distance of 289,000 miles
Why Is Pluto No Longer a Planet?
Did the former planet really deserve its demotion?
Centimetres vs inches, metal rulers on a white background with clipping path.
Why Doesn’t the U.S. Use the Metric System?
In a metric world, why does the U.S. choose to be different?
Augusta Ada, Countess Lovelace 1815-1852 English mathematician and writer. Daughter of Byron and friend of Charles Babbage. Devised programme for Babbage's Analytical Engine. Portrait by Margaret Carpenter.
Ada Lovelace: The First Computer Programmer
How a 19th-century British countess became a computer-science pioneer.

Spotlight: Global Warming

If it seems hotter than usual, it’s not just you. In July, the Earth recorded the highest average temperatures in history, as the water temperature in some locales reached hot-tub levels . We know it’s getting warmer; what we don't know yet is how this trend will affect Earth, though we’re feeling the effects this summer.

Quizzes

Umbrella colored like a rainbow sticking out above a sea of black umbrellas while it rains. (storm, weather)
Weather Words Vocabulary Quiz
Can you handle the (barometric) pressure?
3d illustration of small intestines, human body, anatomy
Guess the Body Part Quiz
Taking this quiz requires guts.
Name that Thing - Tools, composite image: calipers, hammer claw, pestle, trowel
Name That Thing: Tools
A handy quiz to test your tool acumen.
Red and yellow cherry tomatoes, some forming a question mark, against a light blue background. (organic, fruits, vegetables)
Fruit or Vegetable? A Quiz
How to be a smarty-pants in the produce aisle.

Videos

Understand the difference between meteors, meteoroids, and meteorites
Understand the difference between meteors, meteoroids, and meteorites
Encyclopædia Britannica, Inc.
  • Understand the difference between meteors, meteoroids, and meteorites
    Understand the difference between meteors, meteoroids, and meteorites
  • Know the science that takes place while grilling meat
    Know the science that takes place while grilling meat
  • How the polio vaccine changed the world
    How the polio vaccine changed the world
  • Will cloning bring the woolly mammoth back to life?
    Will cloning bring the woolly mammoth back to life?
  • What are the different types of extinction?
    What are the different types of extinction?

Galleries

Paricutin Volcano, Mexico, in eruption at night. 1947.

7 Wonders of the Natural World

Nickel-iron meteorite, from Canyon Diablo, Arizona.

Meteorites

Orange Cup Coral

Coral

Reed frog on the inside of a pink lily flower (hyperolius sp)

Life

With the tornado in the background in Goshen County, Wyoming on June 5, 2009, the National Severe Storms Laboratory Field Command Vehicle helped coordinate operations in the field during the Verification of the Origins of Rotation in Tornadoes Experiment

Tornadoes

Milky Way galaxy in night sky. (space, stars, center, astronomy, telescope)

The Solar System

Featured Categories

Biology

Astronomy

Mathematics

    Al-Khwārizmī
    al-Khwārizmī
    Al-Khwārizmī, Muslim mathematician and astronomer whose major works introduced Hindu-Arabic numerals and the concepts of algebra into European mathematics. Latinized versions of his name and of his most famous book title live on in the terms algorithm and algebra. Al-Khwārizmī lived in Baghdad,
    bunch of numbers
    Unusual Counting Systems
    In everyday life we use a base-10 counting system, but that is not something that has always been used in history.
    Euclid
    Euclid
    Euclid, the most prominent mathematician of Greco-Roman antiquity, best known for his treatise on geometry, the Elements. Of Euclid’s life nothing is known except what the Greek philosopher Proclus (c. 410–485 ce) reports in his “summary” of famous Greek mathematicians. According to him, Euclid
    Aryabhata I
    Aryabhata
    Aryabhata, astronomer and the earliest Indian mathematician whose work and history are available to modern scholars. He is also known as Aryabhata I or Aryabhata the Elder to distinguish him from a 10th-century Indian mathematician of the same name. He flourished in Kusumapura—near Patalipurta