Ned Snelling
Comparative physiologist and researcher at the University of Pretoria who studies insect respiratory systems and challenged the long-standing oxygen-limitation hypothesis for insect body size.
Best podcasts with Ned Snelling
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Mar 25, 2026 • 23min
Why insects aren't huge: a new challenge to a decades-old idea
Justin Aikin, a UCSF researcher advancing in vivo CRISPR CAR‑T approaches, and Ned Snelling, a comparative physiologist probing insect respiratory limits. They discuss why insects do not grow huge, measurements of tracheole scaling, debates over air sacs and convection, and the implications for ancient versus modern insect sizes. They also cover in vivo CAR‑T engineering strategies and early mouse results.
