The phrase "curious creatures" refers to animals or beings that are interested in exploring and discovering new things. They are always eager to learn and understand the world around them. Full definition
Humans are naturally curious creatures; if you know everything about your date from the first date what are you going to do on the second date? (cupid-match.com)
Dogs are very curious creatures when it comes to «food» lying on the ground. (healthguidance.org)
Dogs and cats are curious creatures by nature, and in addition to this trait, canines find bone meal and blood meal to be very palatable. (wagwalking.com)