i saw a video on youtube of a barking cat, is it true they can bark or that was just one weird cat?
All cats have different 'voices', so some cats might sound like they bark. They probably can also learn to make a barking noise if they wanted to.
if growing up with a dog, they might take some of their behaviour in. Eg my cat likes to play fetch and wags his tail. He also loves to run with me. We got him "second hand", his previous owner had too much to do with the dog already, and from teh early pictures taken, they got him whn he ws very young, so he probably saw the dog as part of his pack