There were many other animals that have opposable thumbs, before man was even created and more after we have came onto this earth. Opposable thumbs allow us to grab ahold of things and allow us to do other activities. Other animals that have opposable thumbs are: Opossum, Troodon, chimpanzees and the list could continue. If animals posses some similar characteristics to us humans then why do we rank ourselves as a higher hierarchy? That question will probably remain unanswered until further notice. Other animals are pretty smart, some can even mimic our daily life activities. Some studies even prove that animals are actually smarter than humans, isn’t that a shock (not really). Go here for some more information that will blowyour mind!