Additional:
The antennae of the Antaran species operate on a number of levels, concious and subconcious. While an Antaran may be showing one emotion outwardly with the rest of their body, it has been known for their antennae to be showing the true emmotions raging through their minds if they do not take concious control.
Other times the antennae truely do appear to have a mind of their own, taking no interest in the current events the Antaran is involved in. Swatting flies, playing with hair, and shadow puppets to entertain small children are among the most noted activities of the distracted Antaran antennae.
The antennae are also known to be involved in Antaran sex, and many other affectionate and sexual rituals. The details behind this interaction unknown as no Antaran has yet had the desire to breed with the dorky scientists that research this crap.