We already knew that in vitro fertilization (IVF) treatments are taking a hefty toll on Bunnie Xo‘s emotional wellbeing as she and Jelly Roll work toward their dream of having a baby together.

Southern white rhinos are more abundant. The scientists turned to in vitro fertilisation, harvesting the eggs of female northern white rhinos and using sperm from dead male rhinos of the ...

The embryo produced from the assisted fertilisation is later transferred to the recipient animal or frozen using liquid nitrogen until a recipient is ready to accept the fertilised egg.