The video on the site won't play on my computer. Maybe your luck will be better, or maybe you can find it on YouTube.
Update: Thanks to Brent McKee for this link to the video.
Zoo lets guests play tug of war with lions, tigers | News for Austin, Texas | kvue.com | Top Stories: "While visiting the Houston Zoo recently, Ayala, a Houston attorney, recorded a short clip of video which is now posted on YouTube.
It shows caretakers at the Houston Zoo taking a 20-pound chunk of raw meat tied onto a rope and tossing it into a lion’s pen.
Guests then got to tug on the rope."