The mating game in the animal kingdom is nothing less than fascinating and somewhat weird. Some species pierce, clone, chew, or even fake their way through the mating process. To make survival ...

Discover the bizarre facts and fiction about the Virginia opossum's incredible symmetrical reproductive system.

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 ...