During the freshwater cichlids of the genus Amphilophus, good “nuchal temple hump” try exaggerated during the reproduction year
During the freshwater cichlids of the genus Amphilophus, good “nuchal temple hump” try exaggerated during the reproduction year Particularly, hypertrophied eyestalks has actually alone changed in a lot of travel household (Lande and Wilkinson, 1999), on the vision span of males exceeding the full muscles length (Wilkinson and you may Dodson, 1997). Inside the kinds with solid sexual dimorphism, guys having higher attention duration be much more popular with ladies for the spite that the fresh overstated feature decreases traveling performance when you look at the men (Wilkinson and Dodson, 1997; Lande and you will Wilkinson, 1999; Swallow mais aussi al. Multiple instances in the fishes occur. Such, guys of numerous types of the brand new poeciliid genus Xiphophorus, the brand new “swordtails,” often have elongations of the down caudal…
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