Initially, Clint Perry wanted to make a vending machine for bumblebees. He wanted to understand how they solve problems.
Perry, a cognitive biologist at Queen Mary University of London, is interested in testing the limits of animal intelligence.
"I want to know: How does the brain do stuff? How does it make decisions? How does it keep memory?" says Perry. And how big does a brain need to be in order to do all of those things?