Salmon speed up sperm

16 January 2018

Interview with

Patrice Rosegrave, Otago University, & Michael Bartlett, University of Canterbury

When animals compete for mates it’s usually the largest, strongest specimens that are successful and drive off the competition. But the underdog may have a hidden hand to play. Working on chinook salmon, Michael Bartlett and Patrice Rosengrave have found that less dominant males can compensate for being lower down the social pecking order by adding something to their seminal fluid that dramatically accelerates their sperm and boosts their chances of reproductive success…


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