I n a groundbreaking experiment, researchers from the Chinese Academy of Sciences (CAS) have successfully created a bi-paternal mouse—a mouse with two biological fathers. This marks the first ...

The first mice to be created from two fathers, a phenomenon known as androgenesis, have now produced healthy offspring for the first time. Researchers implanted two sperm in an egg with its nucleus ...

A team of stem cell scientists have successfully used embryonic stem cell engineering to create a bi-paternal mouse -- a mouse with two male parents -- that lived until adulthood. Their results ...

To uncover what drives sexual behavior in animals, researchers studied the brain activity of male mice throughout the series of actions involved in sex leading up to ejaculation. Their results ...

The researchers' findings, published on October 15 th in the open-access journal PLOS Biology, show that male mice deescalate aggressive encounters by running over to a female mouse to distract ...

These systems revealed that in the male mouse brains, acetylcholine released rhythmically leading up to intromission—insertion of the penis into the vagina. During intromission, ...

Artistic rendering of mouse bait-and-switch. Male mice, subjected to agonistic interactions, escape and avoid conflict by exploiting nearby females to divert the attention of the pursuing ...

Katsuhiko Hayashi, a genome scientist at Osaka University, turned that tenet on its head last year when he reprogrammed a male mouse’s cells to develop into eggs. Those eggs were then fertilized ...

The researchers' findings, published on October 15 th in the open-access journal PLOS Biology, show that male mice deescalate aggressive encounters by running over to a female mouse to distract ...

Using a novel, medication-based approach, a new Northwestern Medicine study successfully reversed existing inguinal hernias in male mice and fully restored their normal anatomy without surgery ...