Subscribe now

Life

Morphing red blood cells help bats hibernate - and we could do it too

Animals that hibernate need a way to keep their blood flowing as their body temperature drops, and it seems that the mechanical properties of red blood cells may be key

By Christa Lesté-Lasserre

22 October 2024

The common noctule bat (Nyctalus noctula) alters its red blood cells during hibernation

Paul Hobson / naturepl.com

Bats modify their red blood cells to become thicker and more rigid when they hibernate – and if we can figure out how, people might one day be able to copy the process for medical treatments or long-distance space travel.

Animals hibernate to conserve energy during cold weather or when food becomes scarce, slowing their heart rate and dropping their body temperature to as low as 5°C (41°F) to enter a state known as torpor. This is only survivable if their blood continues…

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox! We'll also keep you up to date with New Scientist events and special offers.

Sign up

To continue reading, subscribe today with our introductory offers

Unlock this article

No commitment, cancel anytime*

Offer ends 15 January 2025.

*Cancel anytime within 14 days of payment to receive a refund on unserved issues.

Inclusive of applicable taxes (VAT)

or

Existing subscribers

Sign in to your account