Dragon, Red Very Young (CR 4)

Large Dragon (Fire)
Alignment: Always Chaotic Evil
Initiative: +0; Senses: darkvision 60 ft. and low-light vision
Languages: Draconic

AC: 18 (-1 size, +9 natural), touch 9, flat-footed 18
Hit Dice: 10d12+30 (95 hp)
Fort +10, Ref +7, Will +8
Speed: 40 ft., fly 150 ft. (poor)
Space: 10 ft./5 ft. (10 ft. with bite)
Base Attack +10; Grapple +19
Attack: 1 Bite +14, 2 claws +9, 2 wings +9, 1 Tail Slap +9 melee; Breath +14 ranged
Damage: 1 bite 2d6+5, 2 claws 1d8+2, 2 wings 1d6+2, 1 tail slap 1d8+7, Breath weapon 4d10 (18)
Special Attacks/Actions: Breath weapon
Abilities: Str 21, Dex 10, Con 17, Int 12, Wis 13, Cha 12
Special Qualities: Fire subtype
Feats: #Feats: 4
Skills: Skill points: 16 and plus Jump 10
Advancement: 11-12 HD (Large)
Climate/Terrain: Temperate and warm hill, mountains, and underground
Organization: Solitary or clutch (2-5)
Treasure/Possessions: Double Standard

Source: Monster Manual

Breath Weapon (Su): A red dragon has one type of breath weapon, a cone of fire (4d10 damage, Reflex save for half damage DC 18). Using a breath weapon is a standard action. Once a dragon breathes, it can't breathe again until 1d4 rounds later. If the dragon has more than one type of breath weapon, it still can breathe only once every 1d4 rounds. A blast from a breath weapon always starts at the dragon's mouth and extends in a direction of the dragon's choice.

Fire Subtype (Ex): Fire immunity, double damage from cold except on a successful save.

Locate Object (Sp): The dragon can use this ability as the spell of the same name, 2 times per day.

Fire Subtype

A creature with the fire subtype has immunity to fire. It has vulnerability to cold, which means it takes half again as much (+50%) damage as normal from cold, regardless of whether a saving throw is allowed, or if the save is a success or failure.