White lions, like the cub on the right, are an extremely rare subspecies of the African lion and are not albinos, but a genetic rarity.
Three white lions malnourished to the point that they have difficulty eating have been brought to a big cat sanctuary in Wylie.
Veterinarians are tying to determine how ill the lions are. They were brought to In-Sync Exotics in Wylie on Friday after being seized by the U.S. Department of Agriculture from a Texas wildlife exhibitor in Kaufman County.
The lions -- Jazz, Shazam and Sheila -- 42 other exotic cats at the sanctuary. The animals are said to be in poor health, have pressure sores from lying in one place and have a difficult time keeping their heads up.
The white lions have unusually light fur but are not albinos. Their color results from a rare genetic mutation.