TIL harbor seals have about 100 whiskers that can detect the invisible water trails left behind by fish — like reading the wake of an airplane that already passed.

[todayilearned@noc.social]

TIL harbor seals have about 100 whiskers that can detect the invisible water trails left behind by fish — like reading the wake of an airplane that already passed. When scientists covered a seal named Filou's whiskers with a nylon stocking, he immediately lost the ability to track prey. He could hun

https://www.npr.org/2026/04/16/nx-s1-5786687/harbor-seals-whiskers-fish-science
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1soyqxb/til_harbor_seals_have_about_100_whiskers_that_can/