As indicated by the increase in total offspring production with prolonged access to mates, females of C. remanei are sperm-limited, requiring multiple matings to fertilize all of their eggs (Fig. 1).
"It was a thickened skull spot, to signal to mates or target adversaries," Dr. Holliday said.
But it was something I did mention to mates early in the piece".
Men too, having lost their monopoly of well-paid jobs, are investing in their erotic capital to enhance their appeal to mates and employers.
By comparing and contrasting, the birds can efficiently identify a suitable mate, and preliminary evidence suggests that they are drawn to mates whose moves most closely mirror theirs.
Only after he dies does the former second-ranked bird, or beta male, move up in the hierarchy and acquire access to mates.
But the battle that takes place within a sex for access to mates often results in physical evidence deer antlers, for example, or peacocks' tails.
Levett added: "Scouting can be a closed shop at some places with people giving jobs to mates, partly because there is no pathway.
Rather than shouting at the world through a megaphone, Garvey addresses his still expanding audience as if chatting to mates over a pint.
They probably wouldn't even gossip it to mates in the pub – the mates would look away, shocked by this needless vitriol.
But, quickly loyal to the warm hug of the establishment, I would insist to mates at other universities that we still had as much fun as they did.
