|Size/Type:||Medium Animal||Medium Magical Beast (Extraplanar)|
|Hit Dice:||2d8+2 (11 hp)||2d8+2 (11 hp)|
|Speed:||Swim 80 ft. (16 squares)||Swim 80 ft. (16 squares)|
|Armor Class:||15 (+3 Dex, +2 natural), touch 13, flat-footed 12||15 (+3 Dex, +2 natural), touch 13, flat-footed 12|
|Attack:||Slam +4 melee (2d4)||Slam +4 melee (2d4)|
|Full Attack:||Slam +4 melee (2d4)||Slam +4 melee (2d4)|
|Space/Reach:||5 ft./5 ft.||5 ft./5 ft.|
|Special Attacks:||—||Smite Evil|
|Special Qualities:||Blindsight 120 ft., hold breath, low-light vision||Blindsight 120 ft., hold breath, low-light vision, darkvision 60ft., resistance to acid 5, cold 5, and electricity 5, spell resistance 7|
|Saves:||Fort +4, Ref +6, Will +1||Fort +4, Ref +6, Will +1|
|Abilities:||Str 11, Dex 17, Con 13, Int 2, Wis 12, Cha 6||Str 11, Dex 17, Con 13, Int 3, Wis 12, Cha 6|
|Skills:||Listen +8*, Spot +7*, Swim +8||Listen +8*, Spot +7*, Swim +8|
|Feats:||Weapon Finesse||Weapon Finesse|
|Environment:||Temperate aquatic||Any good-aligned plane|
|Organization:||Solitary, pair, or school (3-20)||Solitary, pair, or school (3-20)|
|Alignment:||Always neutral||Always neutral good|
|Advancement:||3-4 HD (Medium); 5-6 HD (Large)||3-4 HD (Medium); 5-6 HD (Large)|
Porpoises are mammals that tend to be playful, friendly, and helpful. A typical porpoise is 4 to 6 feet long and weighs 110 to 160 pounds. The statistics presented here can describe any small whale of similar size.
Porpoises can "see" by emitting high-frequency sounds, inaudible to most other creatures, that allow them to locate objects and creatures within 120 feet. A silence spell negates this and forces the porpoise to rely on its vision, which is approximately as good as a human’s.
Hold Breath (Ex)
A porpoise can hold its breath for a number of rounds equal to 6 × its Constitution score before it risks drowning.
A porpoise has a +8 racial bonus on any Swim check to perform some special action or avoid a hazard. It can always choose to take 10 on a Swim check, even if distracted or endangered. It can use the run action while swimming, provided it swims in a straight line. *A porpoise has a +4 racial bonus on Spot and Listen checks. These bonuses are lost if its blindsight is negated.
These celestial creatures are commonly summoned by the summon monster I spell.
Smite Evil (Su)
Once per day a celestial porpoise can make a normal melee attack to deal 2 points of extra damage against an evil foe.