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Animalia >Chordata >Osteichthyes >Gasterosteiformes >Gasterosteidae >Gasterosteus >

A Red-swamp crayfish is approaching an egg-guarding male three-spined stickleback. The male swims back and forth between the nest and the crayfish, and then pecks lightly at the crayfish. After repeating the back-and-forth swimming, the male starts fanning the eggs. As the crayfish approaches close to the nest again, the male pecks strongly at the crayfish. As soon as it chased away the crayfish, the male resumes fanning.

(This video picture was prepared by 'Friends of Fukui City Museum of Natural History during a project 'Educational Videos on the Three-spined Stickleback.' http://www.nature.museum.city.fukui.fukui.jp/friends/itoyo/)
(translated by Asoh)

(Data No.momo050918ga01b)

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