![Buffalo-size rodent fossils stir scientists / Relative of guinea pig gives researchers evolutionary pause Buffalo-size rodent fossils stir scientists / Relative of guinea pig gives researchers evolutionary pause](https://s.hdnux.com/photos/12/22/66/2698654/4/1200x0.jpg)
Buffalo-size rodent fossils stir scientists / Relative of guinea pig gives researchers evolutionary pause
![Cliff Pickover on Twitter: "Killer guinea pig the size of a buffalo discovered. Bite as strong as a tiger. Source: http://t.co/sc6gKZ0Ola http://t.co/6c3U2AIT7C" Cliff Pickover on Twitter: "Killer guinea pig the size of a buffalo discovered. Bite as strong as a tiger. Source: http://t.co/sc6gKZ0Ola http://t.co/6c3U2AIT7C"](https://pbs.twimg.com/media/B9AWQREIgAAM633.jpg)
Cliff Pickover on Twitter: "Killer guinea pig the size of a buffalo discovered. Bite as strong as a tiger. Source: http://t.co/sc6gKZ0Ola http://t.co/6c3U2AIT7C"
![TIL that there was once a prehistoric species of guinea pig that was the size of a buffalo and had a bite that rivaled that of the modern tiger : todayilearned TIL that there was once a prehistoric species of guinea pig that was the size of a buffalo and had a bite that rivaled that of the modern tiger : todayilearned](http://i.imgur.com/vrmdY2e.jpg)