From the unconventional and awe-inspiring to the hilarious and heartwarming, here's a look at some of the most interesting photos, videos and stories that have our newsroom talking today. What's capturing your attention, filling your inbox and cluttering your Facebook/Twitter feed? Tweet us the stories you're talking about using #InstantIndex or email us at ABC.WorldNews@abc.com and they could appear on World News.

Tonight's Instant Index:

Conjoined No Longer Allison June and Amelia Lee Tucker, just 10 months old, sat on Santa's lap. The jolly man in the red suit held one girl in each arm. It was a sight that would have been impossible a few weeks ago because the girls were born joined at the chest. It took a team of 40 doctors working seven hours to separate them. Today, Allison - the smaller and feistier of the two - went home. Amelia will stay in the hospital through the holidays. Both girls are expected to live full, healthy lives.

Image credit: Matt Rourke/AP Photo