See Spot go ... ferral?

"The pack leader is a bit of a legend, a pure white dingo crossed with an Italian maremma - a dog bred to be left alone in the mountains to guard sheep and goats from wolves and wild dog attacks," .

Dogged trekker spots rare dingo

Thank you Mr Bob Piper.

The question is - how do they know it was crossed with a Maremma? Curious minds want to know. Well - I do at least.