What is Functional Extinction?

There is an abandoned structure deep in the jungles of borneo, A building meant to be the last hope for the bornean rhinoceros, a subspecies of the incredibly endangered Sumatran Rhino, until the last two captive individuals died in 2019. While some might survive deep in the green heart of borneo, they are also likely functionally extinct, which is defined 3 different ways in conservation biology; sightings have ceased, their is so few they are unable to fill their role in the ecosystem, or the population is no longer viable and they will die out in a few generations. While some press releases incorrectly said Koala were functionally extinct, bornean rhinos kind of fit all 3 definitions if they are not completely gone from the planet.

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You should Also make a vídeo explaining that Why the spinosaurus in Jurassic park was actually a baryonyx and not a Full Blown spinosaurus