Everyone thinks Macroneers are a little slow, but don't tell them that to their faces. Spore creatures sporepedia information on Macroneers.
The Macaroneers are creatures in Spore Creatures that are found in two regions on planet Tapti|Tapti. They have the stun bio-power and, when you first meet them, are rather aggressive. You can befriend one Macaroneer, but its nest mates will attack you (along with the Macaroneer you were befriending) when you're just about to gain its trust. It is possible, but very difficult, to befreind a Macroneer.