Firstly, the ecosystem became unbalanced. If the humans kept the wild animals in the zoo, they will ruin the food chain. For instance, plants are provided by the nature, being eaten by the reindeers then the tigers hunt reindeers for their food. If the tigers were being captured by the humans and kept in cages, we humans instantly break the chain. And the consequences are we going to have a dramatic increase in reindeer’s population and more plants are being consumed. (Tutorvista, 2010)
Secondly, the lack of freedom and space in the zoo. Animals were being kept in cramped and small cages. Even though they were made similar to the animal’s natural environment, but still it is different. Tigers need to run a lot, but kept in the zoo where it is lack of spacious area. They need to hunt for their own food, however while in the zoo the foods are provided. There is no freedom for the animals for being kept by humans. Worst case possible is animals would get depressed and attack people randomly. People should not blame the animals if they got attacked; it is their own fault for keeping the animals in cages.
And then the last main reason is animals are born naturally in the wild and us humans cannot provide them what nature gives for their needs. This is the crucial motive where animals should be freed in the wild or in this