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Gyde

Gydning er forplantning og befrugtning, der forekommer uden for dyrets krop, og er mest almindeligt hos dyr, der lever i vand.

Gydning sker, når hunnen slipper sine æg i vandmasserne, og en han frigiver sædvanligvis sæd, sædvanligvis på samme tid og nær æggene fra hunnen.

Typiske arter, der gyder er fisk og amfibier, mens de fleste pattedyr og insekter har intern befrugtning.

 

Coho laks, der gyder i Salmon River, Oregon i USA.

Film af: Bureau of Land Management

 

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