For shoppers concerned about cracking open an egg to find a developing embryo, food scientists offer reassurance. Commercial fertile eggs are refrigerated immediately after collection, effectively ...

Scientists and fertility doctors have long tried to figure out what makes a good egg that will produce a healthy embryo. It's a critical to know which eggs isolated from a woman will produce the ...

Approximately one in 5,000 children is born with mitochondrial mutations each year. Defective mitochondria "leave the body ...

A fossilized dinosaur egg more than 66 million years old was found with an embryo inside, and international researchers say the discovery creates a link between dinosaurs and modern-day birds.

“This is the first embryo model that has structural compartment organization and morphological similarity to a human embryo at Day 14,” Hanna told the Guardian.

As you age, your fertility slowly declines. By freezing eggs or embryos when you’re young (usually under the age of 40), you can preserve your eggs’ health and, through in vitro fertilization (IVF), ...