Question

what is the real bio of dolphin extinct species​

Answer 1

Of the five species of river dolphins two, the baiji and the Indus river dolphin, are in grave danger of extinction. The baiji, which resides in the Yangtze River in China, one of the most industrialized and polluted rivers in the world, is the most critically endangered cetacean.

Answer 2

Answer:

Of the five species of river dolphins two, the baiji and the Indus river dolphin, are in grave danger of extinction.