Genetically modified rodents are valuable tools in biomedical research, contributing to our basic understanding of biology and gene function, the role of genetic defects in specific diseases, and the ...

The energy invested in animal reproduction is as much as 10 times greater than previously estimated when the metabolic load of bearing and caring for offspring is accounted for, according to a new ...

Reproductive systems and organs are concerned with sexual reproduction: creating more individuals with contributions from 2 parents and genetically different from either parent. Reproductive systems ...

How do animals decide when to fight and when to walk, fly, slither, or swim away? Most research on animal conflict has focused on the short-term costs of single interactions, but a pair of behavioral ...

Editor's note: This story was updated because an earlier version included an inaccuracy. Iowa State University is getting a $2.8 million boost for the university's large animal hospital expansion. The ...