To female molly and Limia fish, nothing is hotter than a male with a large dorsal fin. But these fins aren't just decorations to attract females. Males also use them to fight or intimidate rivals. For ...
Females love males with big dorsal fins, but the appendages first evolved for males to fight other males To female molly and Limia fish, nothing is hotter than a male with a large dorsal fin. But ...
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