Lots
It depends on the type of coat. If it is from bears, 1 or 2. But, it really depends on the fur/animals
polar bear,yak,dog,cat,squirel and many more animals have furry coat on their body.
If you use sheeps or bears or whatever it was, and depend on the size of the coat you want to make. If it was about size 6, for 12 years old childs. It might take about 1 bear, 2 sheeps. A.K.A too many.
There are many animals that have gone extinct in the last 50 years, some only in the last 10 years. These include the western black rhinoceros, ivory-billed woodpecker, dusky seaside sparrow, and the Mexican grizzly bear.
There are many symbols that you may see on a Cooke coat of arms. There are animals and colors that all represent many different feelings and emotions.
The last major erruption was 360,000 years ago. See related link
the Leo last around 2165 years.
The dodo and the tazmanian tiger to name two. i am sure there are more.There are many animals that were alive 200 years ago, but are now extinct.The last known living passenger pigeon died in 1914.The golden toadGreat AukBlue Walleye... (please add a few more) ...
999
There have been six leap years in the last 25.
They easily last 30 to 40 years, if not longer.