London photographer Max Ellis often photographs body builders.
But they're no match for the buff squirrels he encounters in his own backyard.
OK, so Ellis actually does some behind-the-scenes staging to get his Squirrelisimo photos exactly right.
He hangs the props from fishing wire and waits for the right moment, which can take anywhere from a few minutes to a few days.
"People either think 'What a saddo,' or assume it's Photoshopped," Ellis, 52, told BuzzFeed News.
Over the past three years, Ellis has periodically staged the sets in his own backyard.
Photoshoot day or not, Ellis said always he sets out food for his squirrel friends.
In Ellis' world, the squirrels don't just lift weights. They also make movies.
And play Jenga.
They even pull off impressive feats of magic.
And fight dinosaurs.
Ellis, who is also a published children's book author, is working on getting his photo series in print.
Squirrels aren't his only four-legged subjects of choice: Ellis also posts a "stag of the day" photo to Instagram.
But the squirrels aren't jealous.