Siegfried and Roy's Secret Garden and Dolphin Habitat at the Mirage hotel-casino received a significant certification Tuesday.
The American Humane Association announced it's now certified under its conservation program for animal welfare.
The organization recognizes efforts in the humane treatment of animals living in conservation centers and zoos around the world.
The Secret Garden and Dolphin Habitat passed a series of third party audits to earn the certification for overall excellent animal care.
