Mark Rober found a creative and hilarious way to squirrel-proof his bird feeder. Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE since 2013. Her work has previously appeared ...

The squirrel ninjas triumph again. Mark Rober may be a former NASA and Apple engineer but the squirrels in his backyard are smarter than his obstacle course. After version 1.0 of the squirrel maze ...

Anyone with a bird-feeder knows that squirrels love to steal treats that aren't meant for them. This moved one former NASA and Apple engineer to come up with a clever way to combat these menaces.

Obstacle courses build important gross motor skills, develop muscles, develop coordination, help motor planning, increase endurance, increase confidence, and improve problem-solving. Basically all the ...