VANCOUVER, March 8, 2016 (Xinhua) -- A seal pup is seen before it is released to the sea by Marine Mammal Rescue Centre of Vancouver Aquarium in Vancouver, Canada, March 8, 2016. The seal pup, which was rescued by Vancouver Aquarium last December due to its serious injury caused by ocean debris, was released on Tuesday to the ocean after recovery. (Xinhua/Liang Sen)
VANCOUVER, March 8, 2016 (Xinhua) -- A seal pup is seen after it is released to the sea by Marine Mammal Rescue Centre of Vancouver Aquarium in Vancouver, Canada, March 8, 2016. The seal pup, which was rescued by Vancouver Aquarium last December due to its serious injury caused by ocean debris, was released on Tuesday to the ocean after recovery. (Xinhua/Liang Sen)
VANCOUVER, March 8, 2016 (Xinhua) -- A seal pup is seen after it is released to the sea by Marine Mammal Rescue Centre of Vancouver Aquarium in Vancouver, Canada, March 8, 2016. The seal pup, which was rescued by Vancouver Aquarium last December due to its serious injury caused by ocean debris, was released on Tuesday to the ocean after recovery. (Xinhua/Liang Sen)
VANCOUVER, March 8, 2016 (Xinhua) -- A staff member of Marine Mammal Rescue Centre of Vancouver Aquarium releases a seal pup to the ocean in Vancouver, Canada, March 8, 2016. The seal pup, which was rescued by Vancouver Aquarium last December due to its serious injury caused by ocean debris, was released on Tuesday to the ocean after recovery. (Xinhua/Liang Sen)
VANCOUVER, March 8, 2016 (Xinhua) -- Staff members of Marine Mammal Rescue Centre of Vancouver Aquarium release a seal pup to the ocean in Vancouver, Canada, March 8, 2016. The seal pup, which was rescued by Vancouver Aquarium last December due to its serious injury caused by ocean debris, was released on Tuesday to the ocean after recovery. (Xinhua/Liang Sen)