Black-ray goby mother bird regurgitating food to her chicks. This way, the shrimp and the goby are kept well fed. Sometimes, if the shrimp is not kept well fed, it will resort to killing the goby. In the wild, most burrows are shared by male and female goby pairs, with their respective shrimp partners, and the female goby will use this burrow as a nesting site to lay her eggs. The obvious benefits to both organisms of this symbiotic relationship make the interaction a form of mutualism. Here is an interesting example of this. The other fish is a dartfish (genus "Ptereleotris").
Leaping blenny Leaping blenny The leaping blenny ("Alticus saliens"), also known as the jumping blenny, is a species of combtooth blenny (family Blenniidae) in the genus "Alticus". There is some uncertainty as to whether it was first described by J.R. Forster in 1788 or B.G.E. Lacepède in 1800, although Fishbase currently accredits it to Forster. It was originally described as a member of the genus "Blennius". It is a tropical blenny known from the Pacific and Indian oceans, including the Red Sea, the Society Islands, the Ryukyu and Bonin Islands, Queensland, Australia; and the Mariana Islands. Leaping blennies have been recorded at