With calves weaned, veterinarians criss-cross the country conducting pregnancy checks, or preg checking, cow herds. The vet ...

Five songbird species in California's oak woodlands each seek out a different habitat to maximize their reproductive success, according to new research. Five songbird species in California's oak ...

With calves weaned, veterinarians cross the country conducting pregnancy checks, or preg checking, cow herds. The vet calls ...

Why does the peacock have such an elaborate tail? This cumbersome trait significantly decreases the male's chances of survival. It only exists because it confers an advantage to its bearer in the form ...

The reproductive success of men in non-industrialized societies is closely tied to their social status, finds a new meta-analysis. The reproductive success of men in non-industrialized societies is ...

Animals have personalities too—and some animal couples raise their young better based on how well their personalities match. Greylag geese, which mate in long-term monogamous relationships, have ...

Although several different hypotheses have been proposed to explain the evolution of helping behavior, most are based on the assumption that helping enhances the reproductive success of recipient ...

This is a preview. Log in through your library . Abstract Reproductive effort is a key parameter of life history because it measures the resources allocated to reproduction at the expense of growth ...

One of the top science stories of 2012 (according to Discover magazine) was a study of fruit flies conducted by UCLA’s Patricia Gowaty and her colleagues. In their research labs, they tried (and ...

Cordelia Fine receives funding from an Australian Research Council Future Fellowship. It’s been a mixed week for women and their hormones. When Maryam Mirzakhani became the first woman to win the ...