Biologists around the world are searching to find the cutest animal species and they are asking Twitter for help.

Searching "#CuteOff" on twitter will produce some of the most adorable photos of animals you'll ever see.

Scientists Ann Hilborn and Marcella J. Kelly started the conversation when they debated whethebat-eared foxes or baby bears were cuter.

Shortly after, a Twitter-wide "Cute-off" competition started and people began to submit cute animal pictures.

Check out some of the best tweets from the trending #CuteOff hashtag that's taking over Twitter.