9. Weta (New Zealand Giant Insect)
Wētā are large, spiny insects endemic to New Zealand, thriving in dark, damp environments such as hollow trees, rock cavities, and soil. (teara.govt.nz) Some species, like the alpine wētā, exhibit remarkable cold tolerance, surviving freezing temperatures by producing cryoprotectants such as trehalose and proline. (pubmed.ncbi.nlm.nih.gov) These substances prevent ice crystal formation within their bodies, enabling them to endure conditions lethal to most other animals. (pubmed.ncbi.nlm.nih.gov)