The finding confirms that a cluster of cells that directs the fate of other cells in the developing embryo is evolutionarily conserved across the animal kingdom.
Report finds that pathologist involved in anonymous defamation case committed multiple acts of misconduct; growing eggs from stem cells; neutrophils’ role in metastasis; convergent evolution in birds
Questions about how E. coli evolves; spermatids in a dish; fighting bacteria with virus-like molecule; what drives metastasis; antibodies fight Ebola in monkeys
Researchers identify a molecule that may have been key to the surprisingly common transition from single-celled ancestors to today’s complex, multicellular organisms.