Dancing Fish
Three-spine sticklebacks have mating ritual that is strange. First, male sticklebacks develop a nest and execute a dance to attract a mate. Then your males, whose backs are dotted with spines, swim underneath the females and prick them. Therefore entranced, a lady shall lay eggs inside her beau?s nest. He fertilizes them and chases the feminine away, then offers the eggs with parental care.
Sticklebacks are a well liked among evolutionary biologists simply because they have actually developed enormous variety both in look and behavior on a somewhat brief timescale that is evolutionary. Czytaj dalej
