I came across this post on fish scales (rigid plates that provide protection for the fish). While that may sound like a topic of interest only to an ichthyologist, this is about the aesthetic of fish scales. They are absolutely beautiful.

In a world of climate change and climate-change denial among those in power – at least here in the US, how long will it be before warming streams kill off coldwater fish species?

Treasure them while you can. The post is here.