As widely reported today, the search for the baiji – the "Chinese river" or "white-flag dolphin" – declared extinct last week is not finished.

UPI notes:

"We will try every effort to save them as long as it is not announced to be extinct," said Wang Ding, head of the search team and vice director of the hydrobiology institute of the Chinese Academy of Sciences.

The dolphin is unique to China’s Yangtze River, the state-run Xinhua News Agency reported. If determined to be extinct, the white-flag dolphin will be the first cetacean on record to be driven to extinction by human activity like water pollution, as the dolphin has no natural enemy.