Human breast milk has long reigned as the most complex known mammal milk. But another species might dethrone us: gray seals.

Researchers characterized hundreds of unique oligosaccharides in seal milk, shedding light on the biochemical lives of other mammals ...

Scientists introduced a human gene, ARHGAP11B, into monkey fetuses. The gene caused an increase in the size of the monkey brains, including folding similar to that of human brains. The study poses ...

An article published April 15 in the journal Cell described how scientists took a blastocyst from a macaque and added human cells. A human-monkey chimeric blastocyst. Credit: Weizhi Ji/Kunming ...

Are these scientists trying to create a human-monkey hybrid? Researchers at the Salk Institute for Biological Studies in California have conducted a controversial experiment that entails growing human ...

In a breakthrough new study, scientists have created human-monkey chimera embryos for the first time. These chimeras pave the way for more accurate models of human biology and disease, which could ...