Knarl

The Knarl is a creature that greatly resembles a hedgehog, so much so that there is only one known (behavioural) difference between them: when food is left out for a hedgehog it will appreciate and enjoy the gift; a knarl will see it as an attempt to lure it into a trap and hence savage the garden of the householder who left the food. Muggle children have often been blamed for damage committed by a Knarl.

They were featured in the Care of Magical Creatures O.W.L. during the 1995–1996 school year, where students had to locate it amongst a group of hedgehogs. The trick was to offer each creature some milk.

Knarl quills have magical uses. Fred and George Weasley once paid Mundungus Fletcher six Sickles for a bag of knarl quills, to experiment with for possible use in their Weasleys' Wizard Wheezes products.

Appearances

 * Harry Potter and the Goblet of Fire
 * Harry Potter and the Order of the Phoenix
 * Harry Potter and the Half-Blood Prince
 * Fantastic Beasts and Where to Find Them
 * Wonderbook: Book of Spells