Yellow pygmy Goby (Lubrico Gobius exiguus) "yawning" from its home. Fish “yawn” to give sexual, aggressive, or territorial displays and to cleanse their gills to absorb maximum oxygen from the water to meet their high oxygen requirements. Anilao, Philippines.
Yellow pygmy Goby (Lubrico Gobius exiguus) "yawning" from its home. Fish “yawn” to give sexual, aggressive, or territorial displays and to cleanse their gills to absorb maximum oxygen from the water to meet their high oxygen requirements. Anilao, Philippines.