Nifflers are magical creatures from the Harry Potter universe, specifically featured in the Fantastic Beasts series. They are small, burrowing animals known for their long snouts and fluffy bodies. Nifflers are particularly attracted to shiny objects, making them skilled treasure hunters. Their ability to locate and collect valuables often leads them into mischief. These creatures are typically black with a velvety texture and can grow to about a foot in length. Nifflers are playful and curious, which can sometimes cause trouble for their owners. Despite their antics, they are generally considered friendly and endearing magical beings.