Beaver
“Meet the Master Architect of the Wetlands: The Busy Beaver!”

Appearance: The beaver boasts a stout body covered in dense, waterproof fur, ranging in color from rich brown to dark black. Its broad, flat tail acts as a rudder in water and a stabilizer on land, while its webbed hind feet propel it gracefully through its aquatic domain.
Behavior: Highly industrious and social, beavers are renowned for their remarkable engineering skills. They construct elaborate dams and lodges using branches, mud, and rocks, creating a network of interconnected waterways that provide both protection and access to food sources.
Habitat: Beavers inhabit freshwater ecosystems such as rivers, streams, and ponds, where they transform their surroundings to suit their needs. Their lodges, built from woven sticks and mud, offer shelter from predators and harsh weather conditions.
Modus Operandi: Utilizing their sharp incisors, beavers fell trees and gather vegetation to build dams, which regulate water levels and create ponds for their lodges. They are primarily nocturnal creatures, working tirelessly throughout the night to maintain and expand their intricate water systems.
Motivation: Driven by instinctual urges to build and maintain their habitats, beavers play a crucial role in shaping and preserving wetland ecosystems. Their actions not only benefit themselves but also provide habitat and resources for a diverse array of plant and animal species.
Beaver 5e
Beaver 3.5 Homebrew
Beaver

Small beast, unaligned
Armor Class: 11 (natural armor)
Hit Points: 5 (1d6 + 2)
Speed: 20 ft., swim 30 ft.
STR | DEX | CON | INT | WIS | CHA |
---|---|---|---|---|---|
6 (-2) | 12 (+1) | 14 (+2) | 2 (-4) | 12 (+1) | 3 (-4) |
Skills: Perception +3
Senses: passive Perception 13
Languages: —
Challenge: 0 (10 XP)
Traits
Keen Hearing and Smell: The beaver has advantage on Wisdom (Perception) checks that rely on hearing or smell.
Hold Breath: The beaver can hold its breath for 15 minutes.
Actions
Bite: Melee Weapon Attack: +1 to hit, reach 5 ft., one target. Hit: 1 (1d4 – 1) piercing damage.
Familiar/Companion
The beaver can serve as a familiar or animal companion, providing its master with the benefits of its keen senses, ability to hold its breath, and natural instincts. It can be summoned using spells like find familiar or chosen as an animal companion by a ranger.

This large brown rodent has a rounded head, clawed forelegs, webbed hind feet, and a broad, paddle-shaped scaly tail.
Originally Posted by Shade of the En World forums.
Beavers are large rodents known for their ability to quickly fell trees and build dams within streams. Found in the riparian zone of temperate forests, beavers are excellent swimmers and can spend large amounts of time submerged.
Beavers are crepuscular herbivores, feeding mainly on bark, twigs, and the roots of water plants, occasionally supplemented by grasses on the banks of rivers and streams.
Beavers usually mate for life, and their young (called kits) remain with their parents for up to two years.
Beavers are hunted for both their pelts and their meat, which tastes like lean beef.
Beavers are 2 to 4 feet long and weigh 33 to 100 pounds, averaging around 45 pounds. Fur coloration can vary widely, but dark brown is the most common. Beavers have a lifespan of up to 20 years.
Beaver | |
Small animal | |
Hit Dice | 1d8 (4 hp) |
Initiative | +0 |
Speed | 10 ft. (2 squares), Swim 30 ft. |
Armor Class | 13 (+1 size, +2 natural), touch 11, flat-footed 13 |
Base Attack/Grapple | +0/-3 |
Attack | Bite +2 melee (1d4+1) |
Full Attack | Bite +2 melee (1d4+1) |
Space/Reach | 5 ft./5 ft. |
Special Attacks | Natural lumberjack |
Special Qualities | Cold tolerant, Low-Light Vision, Scent |
Saves | Fort +2, Ref +2, Will +3 |
Abilities | Strength 13, Dexterity 10, Constitution 11, Intelligence 2, Wisdom 16, Charisma 6 |
Skills | Craft (dambuilding) +12, Listen +7, Swim +9 |
Feats | Skill Focus (Listen) |
Environment | Temperate forests |
Organization | Solitary or lodge (10-40) |
Challenge Rating | 1/2 |
Treasure | None |
Alignment | Always neutral |
Advancement | 2HD (Small) |
Level Adjustment | — |
COMBAT
Beavers prefer flight to fight. When startled or frightened, a swimming beaver will rapidly dive while forcefully slapping the water with its broad tail. This slap can be heard over great distances and serves as a warning to other beavers in the area. Once a beaver has made this danger signal, nearby beavers dive and may not reemerge for some time.
Cold Tolerant (Ex): A beaver’s insulating fat grants it a +2 racial bonus on saving throws made against cold attacks and environmental conditions.
Hold Breath (Ex): A beaver can hold its breath for a number of rounds equal to 6 x its Constitution score before it risks drowning.
Natural Lumberjack (Ex): A beaver ignores the hardness of wooden objects with its bite attack.
Skills: A beaver has a +16 racial bonus on Craft (dambuilding) checks. A beaver 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.
Originally appeared in Monstrous Compendium Volume Two (1989).