Are we FISHING for trouble in clear waters?
This is Sandra Tsing Loh with the Loh Down on Science.
Agricultural runoff can turn a lake into a pesticide cocktail. Is it SCALING down fish’s lifespans?
Enter Kai Huang and team at the University of Wuhan.
They looked at unusually small fish from a contaminated lake.
The team determined that low pesticide doses across sixteen weeks were enough to change fish’s’ D-N-A. Specifically, it led to shorter telomeres on the ends of their chromosomes, a well-known sign of aging!
This suggests that pesticide exposure may shorten life spans. And since aging is similar across organisms, “low dose” doesn’t always mean low risk.
Maybe pesticides are FIN-ishing fish’s lives a little early!
Reference: Kai Huang et al.,Chronic low-dose exposure to chlorpyrifos reduces life span in a wild fish by accelerating aging.Science391,275-279(2026).DOI:10.1126/science.ady4727