Ten dreadful days. That's how long Tahlequah, the female orca also known as J-35, has been carrying her dead calf in mourning through the Pacific Northwest's Salish Sea. The female baby orca lived a mere half hour after being born July 24. Its body has begun to decompose, but that hasn't kept the mother from holding onto the calf. Once she does release it, researchers want to conduct an autopsy and find out what exactly killed it.