The picture above seems shocking, but in turn-of-the-century rural Cuba, goat suckling was quite common. A plethora of souvenir postcards survives, depicting scenes similar to the above. They are testimony to the amusement Americans found visiting their newly-conquered island.
Anyway, to me it doesn't look as though that goat is 'big', but it could be the angle or just a young goat.(Or the possibility that we do indeed have bigger knobs than a farmyard animal, not inc. a horse)