Animals at Omaha's zoo aren't allowed to mate at will. Space, genetics and overall compatibility are considered, and a master ...

However, there are two theories about the possible causes of conjoined twins. Conjoined twins are always identical twins. When identical twins form in utero, one fertilized egg, called an embryo, ...

Named the “Contraception Begins at Erection Act,” Blackmon’s bill seeks to make it “unlawful for a person to discharge genetic material without the intent to fertilize an embryo.” ...

The woman, surnamed Hou, was discharged from hospital at the end of November, with the remaining two embryos developing healthily, doctors said. But on January 6, during a prenatal check-up ...

For these genes, animals inherit part of a “dose” from each parent, and the two must work in harmony to create a healthy embryo. Without both doses, gene expression can go awry, and the ...

Editor's note: The Chinese zodiac, or "shengxiao," consists of 12 animal signs that mark the years. Each animal represents one year in a repeating 12-year cycle, which is calculated based on the ...

Based on that evidence, the lawsuit claims that the plaintiffs “contracted listeriosis and suffered harm” after eating contaminated products produced by Tiger Brands, allegations the company ...

A big cat sanctuary founder dubbed "Britain's Tiger King" has been slapped with an animal ban after authorities made a grim freezer discovery. Terrence Moore, 78, the founder of the Cat Survival ...

Scientists from a collaboration of Australian research institutions have proposed that editing multiple genetic variants in human embryos could significantly lower the likelihood of developing ...

Credit: Julien Marcetteau for the Barriga Lab/PoL How cells utilize electric fields to guide their migration during embryonic development. As an embryo develops, cells constantly communicate to ...

Once dismissed as the 'dark side' of the genome, researchers have now revealed their crucial role in early embryo development. Over half of our genomes consists of thousands of remnants of ancient ...