5. Up to 30 Million Undiscovered Insect Species
Despite impressive progress in cataloging insects, experts estimate there could be as many as 30 million species still undiscovered.
Much of this hidden diversity is believed to exist in tropical forests and remote habitats that remain underexplored.
Biodiversity research continually uncovers new species, suggesting we have only scratched the surface of the insect world.
Every discovery sheds new light on evolution, adaptation, and the complexity of life on Earth.