Simplify the following text for a Grade 12 native English-speaking person.
Original: A number of different types of birthmarks are known that include , but are not limited to , stork bites , Mongolian blue spots , strawberry marks , cafÃ au lait spots , congenital melanocytic nevi , and port-wine stains .
Simplified: Some of the types of birthmarks are : stork bites , Mongolian blue spots , strawberry marks , cafÃ au lait spots , congenital melanocytic nevi , and port-wine stains .