It’s hard to imagine today’s family dogs being bred for life-or-death encounters, but some breeds were originally developed to withstand encounters with lions. These were working dogs built for ...

A hyena boasts a bone-crunching 1,100 psi bite force -- for comparison, a human's bite force is about 162 psi and a dog's bite force might hover somewhere around 250 psi. Combine the hyena's ...