the Spanish hunting dog

Here's a blog focusing on the Galgo or Spanish hunting dog:

The Spanish greyhound, or Galgo, was traditionally used for hunting by royalty and was so revered that to kill a Galgo was a crime equivalent to murder....
A Galgo that is too old or too slow or too weak or just not into a crappy game of chase-the-hare tends to meet a brutal death because they have shamed the hunter.  This is tradition.