Moreover , one male fed the litter by regurgitation showing the existence of paternal care in some free - roaming dogs
In absence of the mothers , they were observed to prevent the approach of strangers by vocalizations or even by physical attacks .
One male fed the litter by regurgitation showing the existence of paternal care in some free - roaming dogs
In absence of the mothers , they were observed to prevent the approach of strangers by vocalizations or even by physical attacks .