I will briefly summarise them here, just to give you an idea of where we're coming from.
Death
Goblins do not die. Simple as that. As young goblins we are found under bushes/rocks or in caves (or in one odd case a barrel). When we get bored of life, we wander off and go to sleep under a bush. Eventually (current belief amongst the younger goblins is after a thousand years) we wake up again and go for another wander.
Feathers...
...are extremely important to any goblin. Quite simply, they keep us alive. If a goblin is wearing his/her feathers, then instead of dying on the battlefield (or behind a tree or whatever), the goblin simply loses a feather.
Goblin Life Cycles
A very strange topic, the details of which are not widely known, especially among male goblins, who simply believe what is above. Females are however more aware of this topic, and a description of goblin mating cycles can be found here.