Incendiamoeba cascadensis

Incendiamoeba Sets New Limit for Eukaryotic Heat Tolerance

A single-celled organism has just redrawn the upper limits of complex life. Incendiamoeba cascadensis can replicate at 145° F, a new record for eukaryotic heat tolerance that recalibrates what we thought possible for organisms with a nucleus. This isn't a marginal uptick; it's a genuine expansion of a biological boundary. The discovery invites us to rethink the resilience of life's building blocks. For deeper context on how survival traits manifest across species, our piece on fossilized dinosaur plumage offers a compelling parallel.