KNOXVILLE, Tenn. (WVLT) - Zoo Knoxville invited all dad's in free of charge for Father's Day.
They got to walk around and experience all the animals, but also hang out with the zoo dads, including Walter, the Silvered Leaf Langur and his newest addition Opie.
The weather, of course, perfect outside and nearly 3,000 families showed up to the zoo for all the fun.
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