There are six species of nautiloid currently alive today, and the Birth Aquarium at Scripps Institute of Oceanography at University of California - San Diego has recently hatched a specimen of the chambered nautilus, Nautilus pompilius. This adorable cephalopod was developing in its egg for nine months before it hatched out on the 14th of this month.

More of a write-up on this critter can be found at ZooBorns, which should exceed your daily or even monthly quota of young animals.