Well, in the interests of fighting ignorance, I’ve emailed the website and asked them what that critter is. We’ll see if I get an answer to report back 
As the mother of a seven-year-old, I confess I really wanted it to be a Pika - chewing.
D&R
Coincidentally (I hope, the interwebs freak me out a lot lately) this marmot video came through on my FB page today. Must see cuteness. Confirms though, it doesn’t look much like your little guy.