Possibly up to a mile or two away.
German shepherd by far. trust me. i take care of my neighbors malamute (basically a husky) and i still want to get a German Shepherd more than a husky.
Depends on you, as the owner. A German Shepherd would certainly be more loyal, going as far to die for its owner and is more popular. Beaucerons are much more rare. They both make good guard dogs but the German Shepherd is easier to train.
Her gestation may not be far in. A Shepherd is generally pregnant for 63 days, the puppies can usually be felt after 3 weeks.
From 10 meters away .
German shepherd dogs love being with you and they just get lonely when you're not around. They can tell when you are going to leave and they get upset that they won't be around you. I had a German shepherd puppy and he'd get like that, whining and trying to follow you if you got far away from him. It's all right for you to leave, but you should try to leave toys and things like that for him/her, and if it's a young dog/puppy try not to leave for too long.
200 kHz
a lynx can hear a prey from 65 metres away
"Hear" They can HEAR something up to 5 miles away
25 miles away
almost instantly.
ultrasonic
2 miles