Wild Animals show up when you do things around your village. They take hearts to kill and will make it impossible to harvest or edit the things in their 5x5 area until chased away.
Types of Wild Animals
Boar – Appears when harvesting crops. Has two hearts of health.
Fox – Appears when picking trees. Has two hearts of health.
Hyena – Appears when feeding animals. Has four hearts of health.
Bear – Appears when chopping down trees and breaking rocks. Has four hearts of health.
Goblin/Troll – Appears when breaking crystals. Has six hearts of health.
Having the golden tools (or Gnome set) allows you to use only one heart/action to defeat the animal entirely. Goblin/Troll requires two hits.