How did rabbits become known as an invasive species or pest in Australia whereas it’s not the case elsewhere in the world?
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For rabbits, their evolutionary strategy is to make as many babies as often as possible. Make more offspring than predators can hunt and the rabbit’s DNA can be passed down. In native areas, rabbit populations are some of the main prey animals for things like hawks, wolfs, wild cats, feral dogs, feral cats, etc. They are hunted, killed, and eaten so often that only a few of the rabbits born actually live to reproduce again. There is a balance there.
In Australia they had much less pressure from predators. There were predatora hunting them, but the number of predator animal species and their population size was much less. So more rabbits were surving to breed again than would’ve normally in their native habitat.
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