Fossil embryo dubbed the 'small giant' packs surprises about a big dinosaur
The fragile fossil is among the best-preserved dinosaur embryonic remains ever found.
Fri Aug 28 2020
Chinese scientists make sperm from mouse stem cells
Using embryonic stem cells from mice, Chinese scientists reported Thursday they have created functioning sperm, which was injected into female mice eggs and resulted in normal, fertile offspring.
Fri Feb 26 2016
Science takes a step towards new treatment for infertility
Scientists have produced primordial germ cells that will become sperm and egg in a major breakthrough from the University of Cambridge.
Sat Dec 27 2014