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Prison also weakens animals.. Science has proven it

Prison also weakens animals.. Science has proven it

An extensive research review found that the animals Captive-bred animals experience significant physical and behavioral changes that may harm their chances of survival once released into the wild.

An analysis from the Australian National University showed that captive environments put stress on the animals.

“Major changes in the phenotypes of animals in isolated environments were part of a trend that had gone unnoticed for decades,” said Dr. Dejan Stojanovic, a co-author of the study.

“It’s a global thing affecting everything from butterflies to elephants,” he added.

Various shapes and specifications

The review combined existing international and Australian research. Captive-bred lions and other carnivores, for example, have different skull bone shapes and weaker bite force, likely due to the captive diet.

While monarch butterflies, whose migration usually extends for thousands of kilometers, lose their tendency to migrate, become unable to head south, and have a different wing shape and weaker grip strength.

orange parrot (Shutterstock)

Stojanovic, who has studied keeping and breeding orange-bellied macaws for years, said captive birds have wings that are slightly tapered and shorter, noting that this shape is less conducive to migration.

Danger of extinction

Dr Marissa Parrott, reproductive biologist at Zoos Victoria, said captive breeding is now an essential tool.

“The International Union for Conservation of Nature (IUCN) recommends that more than 2,000 species globally will need captive breeding programs to avoid extinction,” she added.

It is noteworthy that the study was published in full on the Biological Reviews website on the seventh of November.

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