Scientific name -- Homo sapiens
Size -- about 7' tall
Diet -- copious amounts of human food, especially boar meat

The Einherjar were the dead heroes gathered by the Valkyries and taken to Asgard where they lived with Odin. The Valkyries culled only the best and most heroic warriors. While living in Asgard, the Einherjar feasted all night and battled all day, with any wounds being magically healed. Thus they prepared endlessly for the time when Odin called for them to fight with the gods at Ragnarok.