Seeing Crinoids through a “Liquid Lense”:
…rather than try and half-ass a post I thought it would be better to treat you to some incredible photos of feather stars aka crinoids. These are filter feeding echinoderms that use their long arms to pick food out of the water.
Crinoids have been around for a long while with fossils dating back to the Paleozoic. You may recognize fossil crinoids by their long stalk, but most recent crinoids are unstalked and are basically a cup with a bunch of arms emerging from the top surface.