Of all the remarkable things about tide pools, No. 1 on the list has to be this: Each visit offers an opportunity to observe something new. Will an octopus peek out from under a rock? Will warty sea ...
A yellow-edged cadlina, a type of nudibranch or sea slug, is seen laying on the bottom of a tide pool at Fitzgerald Marine Reserve on the San Mateo County coast during an exceptionally low tide on Dec ...