Porcupines may be adorable, but their quills are razor-sharp, designed to impale and next to impossible to remove. But it's not all bad news. Researchers are designing new surgical staples that mimic the quill's shape to better close wounds and promote healing.
Sean McLaine was only three when his father bought a 1969 Mustang Mach 1. At 18 years old, he practically grew up in the pony car. Now he drives it. With every mile of Arizona backroad, Sean and his dad continue to rack up the memories.