The guinea pig can be seen smiling in this viral video. (Instagram/@that1girlspiggies) The video begins with the text insert that reads, “Guinea pigs can't smile.” ...

Sometimes, the smallest creatures have the biggest impact. In a bustling classroom filled with chatter, nerves, and restless ...

If it brings a smile to one other person, then that’s a big thing, I thought.. The video-sharing platform gave me the chance to record the guinea pigs’ antics and add music or other graphics.