India, June 9 -- Two gigantic woolly flying squirrel species from the high Himalayas were discovered last month by scientists from Australia and China.

Parts of the Indian Himalayas, specially around Sikkim, may be home to these extremely rare gliding mammals. According to the Australian Museum, whose scientists were part of the team that discovered the new species, the woolly flying squirrels could be over 3-feet-long and weigh over 2.5kg.

Scientists have known of the woolly flying squirrel, Eupetaurus cinereus, which is among the rarest and least studied mammals in the world, for a long time. For much of the 20th century, it was thought to be extinct, until it was rediscovered in 1994 in northern Pakistan.

But after a careful review ...