During development, communication between organs determines their relative final size.
During development, communication between organs determines their relative final size.
Collective cell migration relies on a directional signal that comes from the moving cluster, rather than from external cues.
Watch the cell transplant experiments in zebrafish that suggest certain embryonic cells rely on intrinsic directional cues for collective migration.
Though some studies point to negative consequences of pot use in adolescents, data on marijuana’s dangers are mixed.
A new study casts doubt on previous research linking early marijuana use to drops in IQ.
The science images and videos that captured our attention in 2012
New noninvasive methods of selecting the most viable embryo could revolutionize in vitro fertilization.
| November 1, 2012
Meet some of the people featured in the November 2012 issue of The Scientist.
Large RNA-protein packets use a novel mechanism to escape the cell nucleus.