The stingray is a type of fish found in both the oceans and in fresh water. Stingrays have rounded, flat bodies and long tails. Some have a venomous spine at the base of the tail, and a few river-dwelling... Read more
The yin yang is a symbol, as well as a school of thought, in eastern philosophy. It is defined as "the two complementary forces that make up all aspects and phenomena of life."... Read more
Thumb signals, such as the thumbs up and thumbs down, are common throughout the world... Read more
DNA stands for "deoxyribonucleic acid." DNA is a chemical compound found within the nucleus of the cells of all living things. DNA is responsible for trait inheritance - the color of your eyes, the pattern on a kitten's coat, or the height of a mighty tree... Read more
The Joker is a DC Comics supervillain, the arch nemesis of Batman. The Joker has been the enemy of Batman from the beginning; he first appeared alongside the Dark Knight in the debut issue of the Batman comic book in 1940... Read more
Riley Freeman is the deuteragonist - the next most important character, in support of the protagonist, or hero - in The Boondocks. The series began as a syndicated comic strip, and Riley made his debut in... Read more
Harley Quinn is a female super villain or antihero from the DC Comics Universe. She first appeared in Batman: The Animated Series in 1992. She made her comic book debut the following year... Read more
The Amazing World of Gumball debuted on Cartoon Network in 2011. The animated television series is a mashup of traditional animation, puppetry, stop-motion animation, computer-generated images, and more... Read more
The Amazing World of Gumball is an animated television series produced by Cartoon Network. The story revolves around twelve-year-old Gumball, a cat, and his adoptive brother, who is a goldfish... Read more
The year was 1902. U.S. President Theodore Roosevelt accepted an invitation to go on a bear hunt. After three days, they had found no bears to hunt. A well-meaning guide tracked down an injured black bear and tied it to a tree for the president to "hunt... Read more
The dog has been called "man's best friend." Dogs were domesticated from the gray wolf thousands of years ago. In the millennia since, dogs have served as companions, guardians, shepherds, and load-bearers for their human friends... Read more
Baby birds go by many names. Depending on their age, they may be called chicks, hatchlings, nestlings, or fledglings... Read more
A lamb is a sheep that is less than one year old. Sheep have been a familiar domestic animal for thousands of years, farmed for meat, milk, and wool. There are also many species of wild sheep... Read more
Pigs were domesticated by humans long ago. Domestic pigs may be referred to as hogs or swine, and wild pigs as boars. A baby pig is called a piglet... Read more
Seals are aquatic mammals. This means that they are furry, warm-blooded animals that spend most of their time in the sea. They must come on land to rest and raise young. There are 32 species of seal worldwide... Read more
Giraffes are the tallest land animals in the world. Some can grow more than 18 feet (5.5 meters) in height. Giraffes not only have the longest neck, but arguably the longest tongue as well. They use their prehensile tongues to pull leaves from trees... Read more
Elephants are the largest land animals on earth. This huge animal is recognized by its characteristic large ears, long, forward-facing teeth called tusks, and its unique snakelike nose, called a trunk... Read more
According to some surveys, the tiger is most commonly cited as a favorite animal. It is the largest cat on earth, ranging through Russia, North Korea, India, China, and other parts of Asia... Read more
Lions have been featured in artwork since time immemorial. Early examples include lion-goddess statues retrieved from ancient Egypt, and the parading lions of the Ishtar Gate from ancient Babylon. These items are on display at the... Read more
A baby duck is called a duckling. The word "duck" comes from Old English words meaning "diver" or "to bend down low." How did the duck earn this name? It is because of the "upending" behavior some species exhibit while... Read more