Ribs can come from both cows and pigs. While pork ribs are the most common type, beef ribs are also a popular choice for barbecue and grilling.
Pork ribs are generally considered the default when someone mentions "ribs". They are typically smaller and cook faster than beef ribs.
Beef ribs are larger and have a richer, more robust flavor due to their higher fat content. They often require longer cooking times.