This is a preview. Log in through your library . Abstract When an individual’s reproductive success relies on winning fights to secure mating opportunities, bearing larger weapons is advantageous.

Analyses of more than 2000 marked barnacle geese (Branta leucopsis) in the largest Baltic colony, Sweden, showed that structurally large females generally produced larger clutches and larger eggs, ...

Why does natural selection appear to happen slowly on long timescales and quickly on short ones? A multigenerational study of four lizard species addresses biology’s “paradox of stasis.” James Stroud ...