Animal-themed condoms aim to slow population growth – with grandpa's help

Environmentalists have handed out 40,000 free 'endangered species condoms' on student campuses, farmers' markets and even via elderly people

Environmentalists will ramp up their attempts to curb what they see as harmful population growth by distributing thousands of condoms adorned with pictures of polar bears, otters and other vulnerable creatures.

The US Census Bureau has projected there will be 322,762,018 people living in America on New Year's Day - an increase of nearly 2.5 million over the past year. In 2016, it's expected a baby will be born every eight seconds, with a death every 10 seconds in the US.