A team of scientists from Salk Institute has successfully generated human cells and tissues in the embryo of pigs, making it the first ever human-pig embryo.
A new study revealed that fake embryos could be used in combination with sperm to produce an offspring in mice models.
Fossils of a 508 million-year-old shrimp-like creature known as "Waptia" were discovered in China carrying several eggs with embryos. This find represents the earliest known evidence of brood care, researchers say.
Scientists have managed to successfully 'reverse evolve' the beaks of chicken embryos. The result very closely resembles the maws of long-gone dinosaurs, bolstering theories about the evolution of flight and - most stunningly - the potential to recreate prehistoric ancestors.