Embrio

Chinese researchers have taken a big step toward a world in which we can cultivate organs for transplant, with the first-ever embryo-disc model that can support and grow the seed cells needed in vitro. It's also a huge leap for regenerative medicine.

We know baby birds communicate, often loudly, and mostly about food, but a new study suggests they can also communicate with each other while still in the egg. This method of communication influences the behavioral and physiological traits of newly-hatched chicks from the same clutch of eggs.