This month, Smithsonian published a fascinating article about the history of chickens and how they basically took over the world. Obviously, chickens couldn't have established their empire without ...

Variables such as weather or other abiotic factors should have a higher influence on demographic rates in border areas than in central areas, given that climatic adaptation might be important in ...

The UN’s Food and Agriculture Organization estimated that in 1990, the world’s population of chickens was around 10.6 billion birds. For 2023, that number has grown to some 34.4 billion animals. And ...

Sexual dimorphism includes biochemical, physiological and morphological differences between males and females, and extends from gonadal differences to differences in other somatic tissues, including ...

1. The transmission mode and reproductive rates of a parasite are usually associated with its virulence. In this study, two experiments were carried out to quantify horizontal transmission rates and ...