The Economic Times

In 1968, 20 million squirrels suddenly began migrating across America. The mass exodus confused scientists but the answer was in what happened a year before

In 1968, millions of squirrels suddenly flooded roads, crossed lakes and abandoned their usual habitats across America, leaving scientists scrambling for answers. Some estimates put their numbers at 20 million, but the reason behind this extraordinary movement was not what many people expected. As researchers investigated the bizarre phenomenon, they uncovered a surprising connection to what had happened in the forests just a year earlier.