I scouted a Wild and it showed a certain number of Troops, but when I attacked there were more. Why?
Wilds fully regenerate their Troops within 60 minutes of being attacked.
If another player attacks the Wild and loses, the remainder of Troops will inhabit the Wild. This means that if you Scout the Wild during this time, it will show a lesser amount of Troops than what may be there when you actually attack it.
Within the next 60 minutes the Wild will begin regenerating the Troops that were lost from the previous attack, which means that when you attack the Wild, you will encounter more Troops than when you first scouted it. This only applies to Wilds that have been attacked.