Gifs are image files that support animation. They also tend to be pretty weird, man. For crying out loud, that cat is doing laundry! These groovy gifs make great attention grabbers and are easily insertable into your online courses and PowerPoints. Use ’em!
A great site for finding gifs is giphy.com
Use the search bar to type in key words like Mitochondria or Three Stooges. Whatever floats your boat. Gifs are a happening freak fest for both you and your students.