Bird reproductive organs,artwork

Numéro d’image : 11608426
Bird reproductive organs,artwork
Bird reproductive organs,artwork. The male organs are at right and the female organs at left. All birds have a cloaca (bottom in both artworks),which is a combined intestinal,urinary and reproductive tract. The male has internal testes (oval,grey),with the larger one on the left. Sperm travels down tubes into the cloaca,to be deposited in the female's cloaca. As eggs leave the female's single ovary (pink) and travel along the oviduct,they can be fertilised by this sperm. The fertilised egg is then laid by the female and incubated until hatching. The kidneys (red) and ureters are also shown here
Licence : Droits gérés
Crédit: Science Photo Library / Lunau, Claus
Taille de l’image : 4850 px × 3638 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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