title: Digest: Fitness gains in guppies support evolution's role in coexistence.
authors.affiliation: Ringgold standard institution-Evolution and Ecology, University of California Davis, Davis, California, 95616.
authors.forename: Kelsey
authors.initials: K
authors.lastname: Lyberger
mesh_terms: D000818:Animals; D005075:Biological Evolution; D011036:Poecilia