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").
The Grunt The Grunt "The Grunt" is a funk instrumental recorded in 1970 by James Brown's band The J.B.'s. It was released as a two-part single on King. It was one of only two instrumental singles recorded by the original J.B.'s lineup with Bootsy and Catfish Collins. Large parts of "The Grunt"'s melody and arrangement are borrowed, uncredited, from The Isley Brothers' song "Keep on Doin'", which was released earlier in the same year. Part 1 of "The Grunt" was included on The J.B.'s' 1972 album "Food for Thought". "The Grunt" has been a prolific source of samples for hip hop producers.