. >> david bamberger: you're at the first place that this...began. >> logan: 83-year-old texan david bamberger has spent more than 30 years fighting to save one of these antelope, the scimitar-horned oryx, from extinction. he brought us to where it all began, in this small pasture, which he calls "the sahara," on his 5,500-acre ranch. >> bamberger: here they go. >> logan: look at that. they're beautiful. oh, look at the babies in the front. you almost have to remind yourself that this is not africa; it's johnson city, texas. this beautiful animal has horns that can grow as long as four feet, and resemble the curved blade of a scimitar. it's believed by some to have inspired the myth of the unicorn. >> bamberger: they tell me it's the only africa antelope known to be able to kill a lion. >> logan: they vanished decades ago from the deserts of egypt, senegal, chad-- all the places where they first walked the earth more than two million years ago. >> bamberger: they wouldn't be here and alive if we hadn't taken some action 30 years ago. >> logan: