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").
Grunt (G.I. Joe) the peace activist Grunt helped to rescue in issue #1. General Hawk and Joe supporter General Hollingsworth are being held in a hospital filled with a murderous American military faction. Unexpected interference by Destro helps save the generals and clear the Joe team of all charges. Grunt appears in issue #145 and explains that he has gained an engineering degree. His former teammates expresses their wish that he come back to join them. Duke encourages him to stick with his current life, as society needs more people building things instead of destroying them. The comics never had Grunt rejoin the