Cute isn't exactly a scientific term but we all know what we mean by it, don't we? Endearing, adorable, lovable and sweet. So what makes us fawn over a puppy, but run away from rats? Why do we spend millions on trying to keep Giant Pandas alive but spend even more on pushing endangered species like blue-fin Tuna to the brink of extinction by eating them? And if we changed what we classified as cute or ugly, how might that change the battle to protect the Earth's fragile biodiversity?

CrowdScience listener Oleksiy, from Ukraine, wanted to know if cuteness is universal and what drives it? Seeking the answers, Marnie Chesterton cuddles puppies and enters a cramped spider nursery, seeking the science of cute, and exploring the evolutionary reasons for fear and disgust.

Presenter: Marnie Chesterton

Producer: Rory Galloway

(Image: A cute and scary spider sitting on a green leaf. Credit: Getty Images)