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This would happen if big cat species was introduced into Australia

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If big cats were introduced to Australia, their main source of feeding would be kangaroos. They would be a relatively easy source of food, but we'll talk about that later

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The biggest predators in Australia are the dingos, they are about the same size as a coyote

In most environments where cats and dogs find themselves, cats end up above dogs in the food chain, with some exceptions like lynx and wolves in Europe and Asia (and also in the stone jungle of the naked apes)

Note: I will consider an Australia with the least human influence possible

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First the leopard

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Leopards feed on prey weighing up to 40 kilograms, possibly feeding only on female kangaroos and young kangaroos.

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Imagine that gazelle is a kangaroo.

Leopards meet dogs in all environments they inhabit. In Africa, large groups of wild dogs (about the size of a dingo) manage to steal leopard carcasses

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In India it is very common leopards kill domestic dogs.

In general, large dingo groups would be superior to young leopards, but an adult leopard would be a big threat to a lone dingo or in small groups

Leopards have a huge capacity to adapt, they can live in savannas, deserts, jungles, taigas, etc. Leopards would not have much trouble adapting to the Australian Outback

The next cat would be the jaguar

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The jaguar is the third largest cat in the world. He would possibly have difficulty in preying on kangaroos, jaguars do not usually chase their prey, but possibly his main prey would not be kangaroos

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Jaguars are the only cats that often feed on crocodilians. In the north of Australia, there is a huge population of saltwater crocodiles, jaguars usually hunt alligators in South America. Crocodiles would probably be part of the jaguars' diet, they would keep their distance from large 5 or 6 meter crocodiles, and possibly hunt crocodiles. up to 3.5 meters

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In this situation, the jaguars would possibly have a tendency to grow more and more, due to competition with crocodiles and the large availability of prey

The jaguar could also prey on the dingo

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This beautiful animal is the maned wolf. They are very common in Brazil, Bolivia and Paraguay. They are the tallest wild dogs in the world

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A sad fact about them is that they are preyed upon by jaguars in the areas where the species are found

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Jaguars also rarely find and hunt coyotes in northern Mexico

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The dingos would probably have the same end as coyotes and maned wolves

The next is the tiger

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Tigers would have a big problem in this case. Tigers are heavy animals that need to eat a lot, they hunt animals over 1.5 tons.

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Kangaroos would be too small for big tigers to feed like Siberian tigers and Bengal tigers

When tigers do not have a wide variety of prey available, they are usually smaller

This is a Bali tiger, they went extinct around 1950, they were the smallest subspecies of tigers. The largest males reached only 100 kg (approximately the size of a leopard)

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Australia's tigers would possibly be the same size as a Bali tiger or a Sumatran tiger. In this case, they possibly would have no problem with their prey.

Tigers would possibly also hunt dingos. Wolves end up being extinct in areas where they live with tigers, dingoes would have this same problem. The dingo population would likely drop dramatically

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Finally the lion

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I left the lion last because it would be the most interesting case

The lion would be the cat that would have the most trouble in Australia. A single lion would already have problems feeding only kangaroos, a group of up to 30 individuals would not have much chance of surviving

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The smallest animals hunted by lions weigh more than 200 kg

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Lions would have to stop living in groups and have a big reduction in size, so that they have some chance of survival in Australia. This change would be very drastic for lions, it’s very unlikely that they would be able to adapt to this totally new lifestyle

The end of Australian lions would likely be extinction

In short: Leopards are the cats that best would adapt, Jaguars and tigers would adapt over time, Lions could not survive

Source: opera.com
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