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How Many Species Exist?
Estimating the total number of species on Earth is a challenge that continues to stump scientists. Life is vast and diverse, and much of it remains unexplored or undiscovered, complicating this quest. Current estimates suggest there could be anywhere from 8.7 million to over a trillion species, with less than 20% formally described.
The majority of undiscovered species are likely small organisms, such as insects and microbes. This uncertainty highlights the richness of Earth’s biodiversity and the limitations of our current scientific understanding, reminding us of the many mysteries our planet holds.
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