Chinese Paddle-fish officially declared extinct
Humans destroying their habitats through pollution and urbanization is one cause of this extinction. Another cause is the lakh of reproduction in species. Building of the Gezhouba Dam in 1981 also played a major role in this extinction because it blocked the migration route of the fish. However the main cause seems to be over fishing of the species.
The average length of this species was 10 feet. The species were native to Yangtze River, the longest river in Asia. The team conducted a survey in the river between 2017 to 2018. Over 300 species of fish were found but not a single live specimen of Chinese Paddle-fish. The team also reported another 140 historically reported fish species that were not found, most of which considered highly endangered.
Some extinct species can be resurrected through using gene technologies such as cloning and genome editing. This process is known as de-extinction. But a living tissue of Psephurus gladius has not been conserved anywhere.