Manta Ray Born in Captivity

A Japanese aquarium has announced what may be the first captive birth of a manta ray. From the news:

"The baby manta, a female, was born late Saturday in a huge fish tank at the Okinawa Churaumi Aquarium, more than a year after its parents mated, the aquarium said in a statement posted Sunday on its Web site.
"In a video capturing the birth, the baby manta, rolled up like a tube, came sliding out of the mother manta, then quickly spread its fins and began swimming around." ...
"According to the aquarium, the newborn manta was more than six feet wide.
"The mother manta, which was brought to the aquarium in 1998 after hitting a fishnet off the southern island of Okinawa, about 1,000 miles southwest of Tokyo, mated with its partner on June 8, 2006, and was pregnant with the baby for 374 days, according to the statement."