Video How Two Rats Become 15,000 in a Year | National Geographic

You can't call them lazy. Once a female rat reproduces, she could have 15,000 descendants by the end of just one year!
➡ Subscribe: http://bit.ly/NatGeoSubscribe

About National Geographic:
National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.

Get More National Geographic:
Official Site: http://bit.ly/NatGeoOfficialSite
Facebook: http://bit.ly/FBNatGeo
Twitter: http://bit.ly/NatGeoTwitter
Instagram: http://bit.ly/NatGeoInsta

How Two Rats Become 15,000 in a Year | National Geographic
https://youtu.be/RJA4IW_pkeo

National Geographic
https://www.youtube.com/natgeo