The Vortigaunts I see the "Vorts" as great creatures from a far out empire somewhere in the Half-Life universe. As we only see them as hostile aliens among the other aliens coming through the "XEN" portals in Black Mesa, they are very intresting beings. However, I would have liked to know why the Vortigaunts did not speak in Half-Life 1. As in saying what they did in Half-Life's 2 to Episode 2 when killing the combine or antlions. In my opinion, Half-Life 2 Episode 2 reveals most about them. As we learn in Episode 2, Vortigaunts where once Sheapards of Antlions most likely for food and other chemicals that the Antlions produce like "the extract" that allows them to get power from the "Vortesencinse" to save Alyx. The Vortigaunts apparently have no names because they share a collective concesness. As suspected the Vortigaunts all look the same. This makes most sence but it partly it makes no sence at all. Just think, we humans are one speciese but we all look slightly different. Now, I know its a game and it would be almost impossible to have multiple skins for the Vortigaunts but, wait, can't they just do what they do what they did with the citizens? Anyway, Vortigaunts also seem to have the power to emit electrical shocks as a weapon. They might have muscles to get an electrical charge like an electric eel.