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Standardbred gelding prehistoric cave painting in Lascaux Clydesdales Pompeii: mosaic of Alexander the Great jade horse head horse anatomy horse hoof horse teeth horse: colours horse: facial markings
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horse summary
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vulture. An adult bearded vulture at a raptor recovery center. The Gypaetus barbatus also known as the Lammergeier or Lammergeyer, is a bird of prey and considered an Old World vulture.
Animal Factoids
Giraffe standing in grass, Kenya.
Know Your Mammals Quiz
Field of race horses at the clubhouse turn during the 133rd running of the Kentucky Derby at Churchill Downs in Louisville Kentucky May 5, 2007. Thoroughbred horse racing
All About Horse Racing Quiz
Encyclopaedia Britannica thistle graphic to be used with a Mendel/Consumer quiz in place of a photograph.
36 Questions from Britannica’s Most Popular Science Quizzes
Spotted hyena or laughing hyena (Crocuta crocuta), South Africa. (scavenger; African animal, mammal).
Weird Animals Quiz
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6 Domestic Animals and Their Wild Ancestors
animal. Amphibian. Frog. Anura. Ranidae. Frog in grass.
Abundant Animals: The Most Numerous Organisms in the World
Working German Shepherd dog sniffing a suspecting package for drugs or explosives.
Working Like a Dog: 7 Animals with Jobs
Ruminant. Deer. Red deer. Cervus elaphus. Buck. Stag. Antlers.
9 of the World’s Deadliest Mammals
Article title: raven, common. Scientific name: Corvus corax; animal; bird
8 Creepy Critters in the Work of Edgar Allan Poe
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Two chicks near an egg with a white background (poultry, chick, chickens, birds).
What Do Eggs Have to Do with Easter?
Still from the film Deliverance, 1919. The story of Helen Keller and Anne Sullivan. View shows Keller in the cockpit/front seat of an airplane.
How Did Helen Keller Fly a Plane?
Coffee beans after roasting.
How Is Coffee Decaffeinated?
Mona Lisa, oil on wood panel by Leonardo da Vinci, c. 1503-06; in the Louvre, Paris, France. 77 x 53 cm.
Why Is the Mona Lisa So Famous?
Solar eclipse of the sun.
The Sun Was Eaten: 6 Ways Cultures Have Explained Eclipses
solar eclipse, sun, moon, astronomy, space
How Do You Tell the Difference Between Total, Annular, Solar, and Lunar Eclipses?
United States Electoral College votes by state
How Many Electoral College Votes Does Each U.S. State Have?

The evolutionary lineage of the horse is among the best-documented in all paleontology. The history of the horse family, Equidae, began during the Eocene Epoch, which lasted from about 56 million to 33.9 million years ago. During the early Eocene there appeared the first ancestral horse, a hoofed, browsing mammal designated correctly as Hyracotherium but more commonly called Eohippus, the “dawn horse.” Fossils of Eohippus, which have been found in both North America and Europe, show an animal that stood 4.2 to 5 hands (about 42.7 to 50.8 cm, or 16.8 to 20 inches) high, diminutive by comparison with the ...(100 of 6770 words)

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