Police and fishery workers in southern China rescued and sent a stranded dolphin back to the sea on June 14.
The video, filmed in Suixi County in Guangdong Province, shows a dolphin stranded on a beach.
Police and fishery workers used a soft cloth to try to carry the dolphin back into the sea but the nearby water was too shallow for it to swim.
They then took the dolphin onto a boat to transport it to the open sea and returned it back to its natural habitat.
According to reports, the dolphin swam around the boat three times to "thank" the rescuers before leaving.
The video was provided by local media with permission.