SEATTLE (AP) — The Southern Resident killer whales have welcomed a new member to their family. Mother orca Tahlequah, J35, has given birth to a calf. Two years ago Tahlequah carried her dead calf for 17 days and 1,000 miles. Her grief gripped the hearts of people all around the world. Ken Balcomb, the founder for the Center for Whale Research, says the calf likely arrived Friday and appears “robust.” The gender has not been announced. Researchers discovered the mother was pregnant in July. This is significant for these struggling orcas who have faced boat noise, a lack of food supply, habitat loss and environmental pollutants.