ScienceSource

Blackbeard, Edward Teach, English Pirate. (c) Science Source

Westie dog Mom and Puppy

Marine Sow, Sea Monster, 16th Century. "Marine sow" from Des Monstres et prodiges by Ambroise Paré, 1573. (c) Science Source

First observation of omega-minus particle. In this historic photograph from the 80-inch (200cm) bubble chamber at the Brookhaven National Laboratory, a negative kaon enters at bottom left and collides with a proton in the chamber's hydrogen to produce 3 particles, including the omega-minus, which consists of three strange quarks. The omega travels a short distance before decaying into a negative pion, which veers to the right across the bottom part of the picture, and a neutral xi particle which leaves no track. Discovery of the omega in 1964 confirmed Murray Gell-Mann and Yuval Ne'eman's classification of subatomic particles, the "Eightfold Way." (c) Science Source

The School of Athens, shows the philosophers Plato and Aristotle. It represents all the greatest mathematicians, philosophers and scientists from classical antiquity gathered together sharing their ideas painted by Raphael between 1509 and 1511. The figures all lived at different times, but here they are gathered together under one roof. Plato, Aristoteles, Socrates, Pythagoras, Euclid, Ptolemy, Zoroaster, Raphael, Sodoma and Diogenes have been identified with some certainty. Other identifications are more or less speculative. Aristotle (on the right) and Plato (on the left, pointing up) are the central figures. Diogenes, in blue toga, sits on the stairs below them.

Portrait of a handsome German Shepherd Dog.

Two West Highland Terrier Dog puppies sit on the grass. Yellow sunflowers in the background.

A cute black cairn terrier stands looking up at its owner.

Sweet Brown and White Japanese Chin Dog

American Staffordshire Bull Terrier.

Rottweiler puppy dogs on a log.

American Staffordshire Terrier puppy dog.

Adult Rottweiler Laying in the Grass

White Swiss Shepherd Dog or a White German Shepherd Dog Puppy

Labrador retriever puppy dog, 8 weeks old, with pumpkins, leaves and broom.

Harp Seal (Phoca groenlandica) baby, Magdalen Islands, Quebec, Canada.

A cute Bichon Frise dog lays on the ground with large black eyes,

English Cocker Spaniel (orange roan) in bluebells.

Hot Dog with Mustard on a Bun

Cheeseburger with Bun, Tomato, and Lettuce

Aristotle (384-322 BC) was a Greek philosopher and polymath, a student of Plato and teacher of Alexander the Great. His writings cover many subjects, including physics, metaphysics, poetry, theater, music, logic, rhetoric, linguistics, politics, government, ethics, biology, and zoology. Together with Plato and Socrates, Aristotle is one of the most important founding figures in Western philosophy. Aristotle's writings were the first to create a comprehensive system of Western philosophy, encompassing morality and aesthetics, logic and science, politics and metaphysics.

Dogs - Yellow and Black Labrador puppies.

Two Yellow Labrador retriever puppies Eating out of a metal bowl.

Image obtained by the Cassini-Huygens spacecraft of Saturn. With giant Saturn hanging in the blackness and sheltering Cassini from the sun's blinding glare, the spacecraft viewed the rings as never before, revealing previously unknown faint rings and even glimpsing its home world. This marvelous panoramic view was created by combining a total of 165 images taken by the Cassini wide-angle camera over nearly three hours on Sept. 15, 2006. The full mosaic consists of three rows of nine wide-angle camera footprints; only a portion of the full mosaic is shown here. Color in the view was created by digitally compositing ultraviolet, infrared and clear filter images and was then adjusted to resemble natural color. The mosaic images were acquire...

Lots of different dinosaurs in colorful scene

German short-haired pointer standing on a fallen tree trunk.

Illustration of a Tyrannosaurus (Tyrannosaurus rex).

Group of Dinosaurs Running

Two cute Bedlington Terriers stand next to a suitcase. They're waiting on a train station platform.

Aristotle (384-322 BC) was a Greek philosopher and polymath, a student of Plato and teacher of Alexander the Great. His writings cover many subjects, including physics, metaphysics, poetry, theater, music, logic, rhetoric, linguistics, politics, government, ethics, biology, and zoology. Together with Plato and Socrates, Aristotle is one of the most important founding figures in Western philosophy. Aristotle's writings were the first to create a comprehensive system of Western philosophy, encompassing morality and aesthetics, logic and science, politics and metaphysics.

Cute Pet Golden Hamster Eating a Hazelnut, a yellow flower in the background.

Miniature long-haired dachshunds sitting in a row.

Tobacco mosaic virus (TMV). Each virus consists of a protein coat with internal RNA genetic material. Some viruses are attached end-to-end. The virus enters a host cell in a tobacco plant and commandeers its DNA, instructing it to reproduce more TMV's.

Bayeux Tapestry showing the return of Halley's Comet in 1066. Halley's Comet is the best known of the short-period comets and is visible from Earth every 75-76 years. It is the only short-period comet that is clearly visible to the naked eye from Earth. It was observed and recorded by astronomers since at least 240 BC. The comet's periodicity was first determined in 1705 by English astronomer Edmond Halley, after whom it is now named.

Absinthe, Insanity, Murder and Suicide, 1883 A large bottle labeled "Absinthe" leans to one side; Death sits on the bottle and pours alcohol into a goblet held by a man while dangling a spider over the man's head; acts of insanity, murder, and suicide resulting from alcoholism are depicted. (c) Science Source

French bulldog puppy, 8 weeks old.