The last documented sighting of China's baiji dolphin, or Yantze River dolphin, was in 2002, and while the species is listed as critically endangered, scientists say it may already
As of May 2014, with the hatching of six eggs (the first hatchings since 2011) the total population had increased to 130 living individuals. 47 chicks hatched in the 2016 nesting season, making it a "record breeding season".
Of the approximate 1,100 species of bat that live worldwide, the Rodrigues fruit bat was until recently one of the most endangered.They are still considered critically endangered.