CNN  —  The orca who swam with her dead calf for 17 days in an apparent act of grieving recently gave birth to a new baby, according to Michael Weiss, research director of the Center for Whale Research. The calf born to Tahlequah, known to researchers as J35, was first spotted on December 20 swimming along with J pod in the Puget Sound area for the past several days. Initially, the researchers could not confirm the identity of the calf with certainty. On Monday, however, scientists and