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Have any animals become extinct because of other animals?

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Species go extinct on their own once in a while, but it's usually a result of rapidly changing ecosystem conditions over an entire species range. ... Island were knocked out by disease, but that disease was probably brought by the introduced/invasive black rat so, ultimately, humans still have a hand in these extinctions. read more

In fact it has been estimated that cats have hunted numerous species to extinction (not always directly though but sometimes have just contributed to their extinction by a significant amount). The largest estimate for the number of species that have gone extinct because of, or partially because of cats is about 33 species. read more

Nearly 20,000 species of plants and animals are at a high risk of extinction and if trends continue, Earth could see another mass extinction event within a few centuries. "Unlike past mass extinctions, caused by events like asteroid strikes, volcanic eruptions and natural climate shifts, the current crisis is almost entirely caused by us-- humans," explains the Center for Biological Diversity. read more

There have been several mass extinction events over time in which sometimes over 90% of the species that existed at the time went extinct. The vast majority of all species to ever exist are now extinct. read more

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