Opossum has opposable thumbs
The opossum possesses the same opposable thumbs that people and other primates do. It's known as a hallux. Their cute front feet, which have five tiny pink toes and appear to be wearing gloves, may catch your eye when you first glance at their feet, but their back feet are where their thumbs are located. The hallux is the only opossum finger without a claw, in contrast to the others.
On its rear feet, the opossum has opposable large toes that stand away from the other toes in a manner reminiscent of a human hand and thumb. The opossum's hallux gives it superior climbing and grabbing abilities compared to most other mammals. Opossums are even more unusual than other animals since they have thumbs on their back feet. This is also one of the most interesting facts about opossums.