Close-up of a white mouse held by a gloved hand, symbolizing laboratory research and experimentation.

Scientists Made Mice With Two Mothers

Researchers have tested whether offspring could receive equal genetic contributions from two females or two males. In one case, scientists combined two mouse eggs to produce daughter mice.

Reproduction Research: Offspring From Same-Sex Parents

A white mouse with pink eyes is gently cradled in a person's hands, creating an intimate and caring moment.

Two Fathers Worked Too

Scientists also produced viable mouse offspring carrying genetic contributions from two fathers. Later, Japanese scientists created mouse pups from two male mice that grew into adulthood.

Reproduction Research: Offspring From Same-Sex Parents