Phragmatopoma californica breathes over its entire body, poops from near its mouth, and reproduces with other worms despite living inside a tube.
Learn about the small snail Crepidula fornicata, the anemone whose babies crawl out its mouth, and gymnastic barnacle sex.
We’re used to bodies having front and back, top and bottom, left and right. But as some common California tidepool creatures show, there’s a totally different way of living.
Check out any Pacific coast tidepool for a chance to see the evidence of a common invertebrate going to war over the difference between us and them.