American actress, Betty White once said "People forget the good that zoos do. If it weren't for zoos, we would have so many species that would be extinct today". This is accurate today just as it was several years ago when she first made the observation.

Zoos play a critical role all around the world today. They provide care and shelter for many rare and endangered animals which would have otherwise gone into extinction and offer us humans an opportunity to appreciate animals and learn more about their way of life.

When it comes to the size of a zoo, a large zoo does not necessarily have the largest amount of animals. Instead, the largest zoo in world offers more room for these animals to express themselves.

In this article, we have compiled a list of the top 5 largest zoo in the world by the amount of land mass they occupy. If you ever find yourself in any of these cities, make sure you stop by and say hello to the animals there.

5. Bronx Zoo

Bronx Zoo is located in New York, United States. The zoo covers an impressive land area of 106 hectares and shelters more than 4,000 animals representing 650 different species.

The zoo holds the record as the largest metropolitan zoo in the United States by area. In the world, it is the 5th largest zoo by area.

4. Columbus Zoo and Aquarium

Taking the 4th spot on the top 5 largest zoo in the world by area is the Columbus Zoo and Aquarium, also located in the United States, Ohio to be precise.

The zoo sits on 234 hectares of land. With such enormous space in sight, the zoo offers more recreational services such as a golf course, a water park and an amusement park.

3. Toronto Zoo

The Toronto Zoo in Canada encompasses 287 hectares of land. It is the 3rd largest zoo in the world by area and the largest zoo Canada.

The zoo has a diverse collection of animals as it plays home for more than 5,000 animals representing over 500 different species.

2. Zoo Miami

Also known as Miami-Dade Zoological Park and Gardens, this zoo covers 304 hectares of land. However, more than half of this massive land is yet to be undeveloped.

The zoo houses over 3,000 animals of over 500 species and features over 100 exhibits. It is the largest zoo in Florida.

1. Arignar Zoological Park

India's Arignar Zoological Park takes the number one spot as the world's largest zoo by area. Located in Vandalur, this zoo is spread over a massive area of 602 hectares.

Arignar Zoological Park houses over 2,644 animals of 171 species and records over 2 million visitors every year.

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