Animals and plants which do not exist anymore are called extinct.
Extinction occurs when a species completely disappears from the Earth, either due to natural causes or human activities. Once a species becomes extinct, it no longer exists in the wild or in captivity. Extinction is a natural process, but human activities, such as habitat destruction, pollution, overhunting, and climate change, have accelerated the rate of extinction in recent times, leading to concerns about biodiversity loss and the preservation of endangered species.
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~~~Harsha~~~