3 to 8 ounces
7/5
I rounded a bit but around 593.543884 kg.
Since a werewolf is a legendary or fictional creature, its heart can weigh as much or as little as the current story requires.
280 mg
As much as your heart's desire
There is no scientific proof that direct heart to heart contact between Mother and child can restart a childs heartbeat.
5ilb
100 tonnes
From 2000 to 8000 grams.
The blue whale's heart is the size of a bus. Not quite that big, but it can weigh nearly 1300 pounds.
about 2 or 3 lbs.
Approximately 9 pounds.