Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jan 4, 2020
Most of us don’t really give fish scales a second thought, but for some fish, the scales of others can make for a tasty snack.
Hosted by: Olivia Gordon
SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at http://www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: