Franco Banfi / Starfish (Henricia sp.) feeding on sea squirts, Trondheimfjord, Norway, North Atlantic Ocean.

Chris Mattison / Common polypody fern (Polypodium vulgare) with ripe spore clusters (sori) on underside of fronds.

Tony Wu / Spotty-bellied greenling (Hexagrammos agrammus) male, protecting several clutches of eggs resulting from spawning with multiple females. During the autumn/ winter breeding season, males keeps watch ov...