Today when I logged in to my FishVille account I noticed that Zynga introduced a new lost and adoptable animal, the Manta Ray. You can see the message I got in the image captured below, and you can read on to find out more details about the Manta Ray in Fishville!
How can you get the Manta Ray? While playing FishVille, you can randomly get the message that a scared Manta Ray was trapped in a lobster trap. You can post this to your wall and if your friends click that feed, they'll get the Manta Ray for their own tank. So if you want to get one, make sure to check out your friends' feeds!
More details about the FishVille Manta Ray are available in the FishBook.