How can I animate a snake using motor6D and ROBLOX Animation Editor?

I know how to run animations in Players and NPC but I cant run a slithering animation in my snake. Please help me.

Just to prove that I have some knowledge of animations:

	local po = game.Players.LocalPlayer

local Blow = Instance.new("Animation")
	Blow.AnimationId = "http://www.roblox.com/Asset?ID=222268977"
local animTrack = po.Character.Humanoid:LoadAnimation(Blow)
		animTrack:Play()