The earliest days after fertilization, once a sperm cell meets an egg, are shrouded in scientific mystery. The process of how a humble single cell becomes an organism fascinates scientists across ...

Using CRISPR-based engineering methods to prompt stem cells to organize into embryo-like structures, scientists were able to create 'programmable' cellular models of embryos without ever experimenting ...

Attorneys argued as to whether a Harvard researcher — accused of smuggling frog embryos — brought “biological materials” into the U.S., at a Wednesday court hearing, as reported by The Associated ...