An earlier version of this story incorrectly stated the size of the elephant enclosure at the Tulsa Zoo. It is about 17 acres. Despite a stream of steady protests and objections since the announcement that Billy and Tina the elephants would be transferred from the Los Angeles Zoo to the Tulsa Zoo,

The Tulsa Zoo has officially welcomed two new members to its Asian elephant herd.

The announcement last month that Billy, 40, and Tina, 59, would be sent to the Tulsa Zoo angered animal advocates who argue that they would be subjected again to an enclosure that's too small for agi...