Chinese researchers spot 11 whale species during deep-sea expedition(1/15)

Aerial photo shows a sperm whale in the South China Sea, July 24, 2020. (Xinhua/Zhang Liyun)

Chinese researchers have spotted 11 whale species in the South China Sea during a deep-sea scientific expedition, the Chinese Academy of Sciences said Tuesday.

The 21-day expedition wrapped up Tuesday in Sanya, Hainan Province, having covered over 3,000 km. It was launched to conduct research on the diversity, population levels and distribution patterns of whales in Xisha Islands and Zhongsha Islands in the South China Sea. A similar expedition to study whales was launched in 2019.

Researchers on this year's expedition spotted four whale species that were not seen last year: the pygmy killer whale, the false killer whale, Long-snouted spinner dolphin and the melon-headed whale.

According to researchers, historical records show that over 30 whalespecies have been recorded in the South China Sea, indicating that the area boasts the country's greatest diversity of whale species.

Aerial photo taken on July 13, 2020 shows an expedition vessel in the South China Sea. (Xinhua/Zhang Liyun)

Short-finned pilot whales are seen in the South China Sea, July 20, 2020. (Xinhua/Zhang Liyun)

Dolphins and whales are seen in the South China Sea, July 20, 2020. (Xinhua/Zhang Liyun)

False killer whales are seen in the South China Sea, July 18, 2020. (Xinhua/Zhang Liyun)

A false killer whale is seen in the South China Sea, July 18, 2020. (Xinhua/Zhang Liyun)

A short-finned pilot whale is seen in the South China Sea, July 20, 2020. (Xinhua/Zhang Liyun)

Photo taken on July 24, 2020 shows sperm whales in the South China Sea. (Xinhua/Zhang Liyun)

Fraser's dolphins are seen in the South China Sea, July 20, 2020. (Xinhua/Zhang Liyun)

False killer whales are seen in the South China Sea, July 18, 2020. (Xinhua/Zhang Liyun)

Short-finned pilot whales are seen in the South China Sea, July 20, 2020. (Xinhua/Zhang Liyun)

Researchers make observations during an expedition in the South China Sea, July 27, 2020. (Xinhua/Zhang Liyun)

Researchers take a dinghy to make closer observations in the South China Sea, July 15, 2020. (Xinhua/Wang Ziqiang)

Researchers make observations during an expedition in the South China Sea, July 24, 2020. (Xinhua/Zhang Liyun)

Researchers work during an expedition in the South China Sea, July 10, 2020. (Xinhua/Zhang Liyun)