Female Dark Sleeper (Odontobutis obscura) with Eggs | Japan
This is a female dark sleeper (Odontobutis obscura), a species of freshwater sleeper perch, protecting her brood of eggs. Here she is flipped upside-down, with some of her eggs visible in the background. This fish’s den was located in a tiny crevice in a small ditch by the side of a road.