Cetacean, Blue Whale

This enormous creature has a fluke tail and a wide mouth filled with baleen.

Blue Whale CR 12

XP 19,200
N Colossal animal
Init –1; Senses low-light vision; Perception +27


AC 26, touch 1, flat-footed 26 (–1 Dex, +25 natural, –8 size)
hp 184 (16d8+112)
Fort +17, Ref +9, Will +8


Speed swim 40 ft.
Melee tail slap +21 (8d6+24 plus stun)
Space 30 ft.; Reach 30 ft.
Special Attacks capsize


Str 42, Dex 8, Con 25, Int 2, Wis 13, Cha 6
Base Atk +12; CMB +36; CMD 45 (can’t be tripped)
Feats Awesome Blow, Diehard, Endurance, Improved Bull Rush, Iron Will, Power Attack, Skill Focus (Perception), Weapon Focus (tail slap)
Skills Perception +27, Swim +35; Racial Modifiers +12 Perception
SQ hold breath


Hold Breath (Ex)

A blue whale can hold its breath a number of rounds equal to 10 times its Constitution score.

Stun (Ex)

A blue whale’s fluke can deliver a powerful stunning blow.

A creature struck by this attack must succeed at a DC 34 Fortitude save or be dazed for 1 round. If the strike is a critical hit and the target fails its save, it is also stunned for 1d4 rounds. The save DC is Strength-based.

Tail Slap (Ex)

A blue whale’s tail slap is a primary attack and applies 1–1/2 times its Strength bonus on damage rolls.


Environment any oceans
Organization solitary, pair, or pod (3–18)
Treasure none

The imposing blue whale is one of the largest animals in the sea, though it is generally docile toward anything it doesn’t perceive as a threat. A filter-feeder, the blue whale does not look at humans or ships as potential meals, instead preferring to eat millions of tiny invertebrates known as krill, which it sucks through its baleen in massive gulps. The most dangerous thing about a blue whale, other than its sheer size, is its powerful tail, which can capsize boats and kill humanoids. These enormous mammals can be found in all of the world’s oceans and seas. An adult blue whale is 100 feet long and weighs 200 tons.

Among the largest animals in the world, cetaceans are as varied as the seas in which they make their homes. From the deadly white whale to the often-friendly dolphin, these air-breathing aquatic mammals are perfectly adapted to life on the open ocean, and aside from their need to occasionally surface to breathe air, they are as versatile swimmers as the fish upon which they feed. Cetaceans are split into two categories: toothed whales and baleen whales. Toothed whales eat fish, scooping up whole schools in their wide mouths, while baleen whales filter their tiny-sized food through a comb-like structure. Only toothed whales use echolocation; they possess a lumpy organ on the front of their head called a melon that aids in this ability.

Whalers often hunt cetaceans for their blubber, which whalers render down into oil. Whalers also prize cetaceans’ bones and teeth, which artisans use to craft weapons and art objects using a method of carving called scrimshaw.

Despite their massive size, cetaceans can be relatively docile, but predatory species or threatened members of any species make formidable foes in combat, as their size, speed, and relative intelligence make them more of a challenge than most mundane sea creatures.

Section 15: Copyright Notice

Pathfinder Roleplaying Game Bestiary 5 © 2015, Paizo Inc.; Authors: Dennis Baker, Jesse Benner, John Bennett, Logan Bonner, Creighton Broadhurst, Robert Brookes, Benjamin Bruck, Jason Bulmahn, Adam Daigle, Thurston Hillman, Eric Hindley, Joe Homes, James Jacobs, Amanda Hamon Kunz, Ben McFarland, Jason Nelson, Thom Phillips, Stephen Radney-MacFarland, Alistair Rigg, Alex Riggs, David N. Ross, Wes Schneider, David Schwartz, Mark Seifter, Mike Shel, James L. Sutter, and Linda Zayas-Palmer.

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