Is the Thumb a Finger?
2. Who Else Has Them?
As mentioned, we are not the only animals to have thumbs. As great apes ourselves, we have many similarities with the other apes such as gorillas, chimps, bonobos, and orangutans. Gorillas have opposable thumbs just as we do. The other great apes have opposable thumbs but their fingers are a lot longer, relatively speaking.
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The other apes have longer fingers because they have adapted to life in the trees and their long fingers help them to be wrapped around branches. Other animals with opposable thumbs include monkeys, opossum, pandas, koalas, and even frogs. A lot of birds also have an opposable digit, often in the form of grapple-like talons that allow them to hold onto their prey.
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