00:00Scientists 3D-printed living organs, but something unexpected pulsed inside.
00:06They watched tiny blood vessels suddenly connect themselves.
00:09The cells formed complex networks like they knew what to do.
00:14They used a special gel that melts away, leaving tunnels behind.
00:19But the real secret, cells have an ancient blueprint for vessels.
00:24These vessels grow themselves, making organs truly living.
00:29Find more wild science at the link in bio.
