Squire James
Explorer
From what I've read of the Core Books, the familiar is clearly a magical beast and NOT an animal (PHB p. 50, 2nd column, third sentence of familiar description). Similarly, the Monster Manual notes that magical beasts, unless otherwise noted, have darkvision with a range of 60 feet (p. 5, Magical Beast description). This evidence appears to indicate that familiars have darkvision (and owls have low-light vision too).
Of course, if you went strictly by the rules, the Cleave feat description doesn't state you had to score the inital kill with a melee weapon. So a guy with a bow can shoot it at someone, down an opponent, and immediately gain a melee attack (with the bow, the feat requires that...) against another creature in the immediate vicinity. It doesn't mention the concepts like "reach" and "threaten", so technically it can happen.
In other words, some strange things can happen if the DM isn't allowed to use common sense. Anyone who expects to play 100% "by the book" should expect a lot of tiny rules not to make sense. It's kinda funny looking at posts like, "I hate D&D because a guy with +24 Craft (weaponsmith) roll has to be powerful enough to wax a 5th level fighter!" IMO, people who think like that have forgotten that D&D is a game (though more likely they hate it for some less objective reason that they don't feel like trying to explain, which I can understand).
Of course, if you went strictly by the rules, the Cleave feat description doesn't state you had to score the inital kill with a melee weapon. So a guy with a bow can shoot it at someone, down an opponent, and immediately gain a melee attack (with the bow, the feat requires that...) against another creature in the immediate vicinity. It doesn't mention the concepts like "reach" and "threaten", so technically it can happen.
In other words, some strange things can happen if the DM isn't allowed to use common sense. Anyone who expects to play 100% "by the book" should expect a lot of tiny rules not to make sense. It's kinda funny looking at posts like, "I hate D&D because a guy with +24 Craft (weaponsmith) roll has to be powerful enough to wax a 5th level fighter!" IMO, people who think like that have forgotten that D&D is a game (though more likely they hate it for some less objective reason that they don't feel like trying to explain, which I can understand).