Human fascination with animals goes back as far as humans do. Of the oldest cave paintings discovered, some are up to 40,000 years old, and there are more images of animals than humans. At some point, humans began to capture and hold animals.
The first-known collections were held by royalty and were not open to the public. In Egypt, researchers have found buildings from around 3500 B.C., containing the remains of animals, including elephants, which were not native to Egypt. But life wasn't easy for these animals. They probably had short lives, and their remains show evidence of severe injuries.
The first public exhibit of animals may have been created by Egypt's Queen Hatshepsut around 1480 B.C. Researchers think the zoo was started with animals brought home from a far-off land known as Punt. It's unclear why the Queen built the zoo, but it might have been to show off her wealth and power.
Early zoos are found all over the world. In China, Emperor Wenwang is said to have built a "Garden of Intelligence" around 1060 B.C. It included deer, birds, and many fish. In England, King Henry I set up a collection of animals in about 1110 as part of the royal estate. His collection included tigers and lions. This collection eventually moved to the Tower of London in 1235. The collection stayed at that location for 600 years.