Hebrew University researchers say they have discovered that fish embryos are able to decide when they want to be born. Dr. Matan Golan from the university’s Volcani Institute, who led the team ...

Scientists in China have manipulated embryonic stem cells to create laboratory mice with two male parents that managed to ...

Over the past 60 years, scientists have had success preserving the sex cells and embryos of humans, cattle, mice, and many other animals. Trying to freeze and thaw fish embryos, however, has been more ...

One of the fish’s advantages is clear—literally. Because embryos are transparent and develop outside the mother’s body, scientists can manipulate genes to model human diseases and directly ...

A capsule usually houses one embryo, but in some species there are multiple embryos per egg case. Some cases have long tendrils that help them to attach to seaweed or rocky seafloors. This makes it ...

A new study, published today (December 10) in PNAS, reveals that fluoxetine, a commonly used antidepressant that goes by the brand name Prozac, can alter hormone levels and blunt stress responses in ...

Some critics even argue that PGD "encourages the waste of healthy embryos" (Gosden, 2007) because of the fairly high (but not yet firmly established) rate of misdiagnosis associated with the FISH ...