What Immortality Teaches Us

Some animals age much more slowly than others, and a few show negligible senescence under the right conditions. That reframes aging as a biological process with moving parts, not a single fixed clock.

Lobsters point at one target: telomerase, which helps maintain chromosome caps. But telomerase is only one part of aging biology, and in humans it also intersects with cancer risk.

The exciting part is that we may not have to invent these fixes ourselves. Hydra, lobsters, and naked mole rats have each road-tested a different anti-aging trick over millions of years.

Reading those blueprints — a field called the comparative biology of aging — may be a faster path to longer, healthier human lives than starting from a blank page.