The fingers have unique fingerprints, but the toes do not.
Why it is true
The toes also have unique prints, as do the palms of the hands and the soles of the feet. All these surfaces have patterns of ridges and grooves that are unique to each person.
Source: Nature
Would you rather be asked first?
This is the reading side of the site, so the answer is in the sentence above — that is the whole point of it. Test yourself works the other way round: the question comes on its own, and the fact and the explanation only appear once you have answered.