PHOTOS: Sea otter pup at Shedd Aquarium

The rescued southern sea otter pup (Enhydra lutris nereis) at Shedd Aquarium - currently known as Pup 681 - has been swimming past significant milestones over the last few weeks and is growing quickly. Her diving skills are getting better every day!

Already double in size and weighing in at a little over 10 pounds, Pup 681 is now ready for a name. Shedd is partnering up with ABC's "Good Morning America" to name the female sea otter pup - who came to the aquarium as part of a collaborative partnership with Monterey Bay Aquarium on Oct. 28.

GMA invites viewers to get involved with the contest by casting their votes online at GoodMorningAmerica.com on Yahoo. Participants can submit votes as often as they like until Thursday, Dec.11 at noon PT. The final name will be revealed on Friday, Dec. 12.

Get more information about voting and watch new video of the pup playing here.