<human>:  Why is it called the London Zoological garden?
<bot>: The London Zoological garden is a zoo in London. It was originally opened in 1828, and has since grown to become the largest zoo in the United Kingdom. It is home to more than 2,000 animals, including elephants, gorillas, lions, and zebras. The zoo is famous for its pandas and penguins, and has a reputation for being one of the best zoos in the world.