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").
Little Grunt and the Big Egg Little Grunt and the Big Egg "Little Grunt and the Big Egg (A Prehistoric Fairy Tale)" is a 1990 picture book written and illustrated by Tomie dePaola. It is frequently studied in elementary schools in the United States. It was adapted into a play by William Morton. The Grunt Tribe live in a big cave next to a volcano. When Little Grunt is told that the Ugga-Wugga Tribe is coming over for Sunday brunch the next day Mama Grunt orders him to find some eggs so that she can make an omelette. Little Grunt searches high and low and there