Figure 2
From: Experimental evolution of sperm competitiveness in a mammal

Sperm competitiveness scores (mean P 2 ± s.e.) of males from the polygamous and monogamous selection lines.
From: Experimental evolution of sperm competitiveness in a mammal
Sperm competitiveness scores (mean P 2 ± s.e.) of males from the polygamous and monogamous selection lines.