Magnus Lundgren / Wild Wonders of China / Spotty-bellied greenling (Hexagrammos agrammus), Bohai Sea, Yellow Sea. Zhifu Island, Shandong Province, China.

Magnus Lundgren / Wild Wonders of China / Spotty-bellied greenling (Hexagrammos agrammus), Bohai Sea, Yellow Sea. Zhifu Island, Shandong Province, China.

Tony Wu / Profile photo of a Spotty-bellied greenling (Hexagrammos agrammus), Hokkaido, Japan.

Tony Wu / Close-up view of newly spawned Spotty-bellied greenling eggs (Hexagrammos agrammus). Each egg is about 3mm in size. Photographed at a magnification of four times life size. Hokkaido, Japan.

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...

Tony Wu / Spotty-bellied greenling (Hexagrammos agrammus) male, watching over several clutches of developing eggs, which are just below the fish's left pectoral fin. Hokkaido, Japan.

Tony Wu / Newly-spawned eggs of a Spotty-bellied greenling or Kujime (Hexagrammos agrammus). Each egg is about 3mm in size. A developing embryo is visible at the bottom center of the image, with the eye and jaw...