EVANSVILLE, Ind. (AP) — The two newest critters on display at Evansville’s Mesker Park Zoo aren’t exactly the type of furry animals visitors wish they could pet.

The zoo recently introduced zoo visitors to two African crested porcupines that were born in July and are now covered by rows of sharp quills.

The Evansville Courier & Press reports that the porcupines named Waffles and Flapjack are the second and third offspring of the zoo’s adult pair of African crested porcupines that arrived there in 2013.

The babies and their sibling born last year live with their parents in an exhibit in the zoo’s Children’s Enchanted Forest.

African crested porcupines are the largest rodents in Africa. Their primary diet consists of roots, tubers and fallen fruit.