Wolf collar

Wolf collars are fitted with elongated spikes to stop wolves from attacking dogs on the neck.

Such collars are used by shepherds in many countries including Italy,[citation needed] Spain[1] and Turkey.

[3][4] Marcus Terentius Varro wrote that the farm dogs should have spiked collars for protection against wolves and other wild animals.

[citation needed] The dogs that normally wore the collars were ones used to protect livestock from attack by wolves.

The collar base protects the dog's throat and carotid arteries, while the spikes are intended to deter bites to the neck or even injure wolves trying to do so.