Gryphons are a crash-job between an eagle and a lion. They have a pair of wings and their front feet resemble those of an eagle. Some have an eagle's head and lion's body. They guarded treasure (like dragons). They have a long lineage and were well known in the middle ages. They mated for life, and, if they lost their partner, never sought another.
They can also be Griffons, or Griffins; I prefer Gryphons. They are an heraldic emblem of strength, courage and leadership.