- OTTER
- Furry swimmer
- Animal that holds hands while sleeping
- Attraction at the Monterey Bay Aquarium
- The Beanie Baby "Seaweed," for one
- Web-footed mammal
- Playful mammal
- Weasel family member
- Weasel's kin
- Ring of Bright Water pet
- Aquatic mammal
- Friend of Mole and Water Rat
- Weasel's relative
- River dweller
- Web-footed swimmer
- Riverbank animal
- Riverbank romper
- Weasel-like swimmer
- Japanese mascot Chiitan, for one
- The Japanese mascot and YouTube sensation Chiitan is one
- Water-loving critter
- Animal House brother
- Hermione's marine mammal patronus
- Animal playing a Casio keyboard in a video I recommend you look up right now
- Hermione's patronus
- Neither bear nor twink, on Grindr
- ___ Pops (frozen fruit treats)
- Animal that floats on its back
- Bear foil
- Bear's relative?
- He's slimmer than a bear
- Playful swimmer
- Monterey Bay sight
- Wind in the Willows character
- Badger cousin
- Clapping creature
- Musk source
- Playful pond slider
- Riverbank burrower
- Waterslide builder
- Playful animal
- Playful river denizen
- Mammal with webbed feet
- Animal that opens shellfish
- Playful critter
- Riverine resident
- Tarka, for one
- Web-footed beast
- Erie hockey player
- Whiskered romper
- Water-loving mammal
- Fun-loving mammal
- River frolicker
- Furry frolicker
- Fish-eating frolicker
- Animal House role
- Playful aquatic mammal
- Marine mammal that lacks blubber
- Amphibious mammal
- Fish-eating mammal
- Thick-furred mammal
- Tim Matheson's "Animal House" role
- Lively aquatic mammal
- Creature that swims in circles to create eddies that draw fish to the surface
- Mammal with transparent eyelids
- One whistling by the river
- Aquatic animal that uses rocks as tools
- Only proficient swimmer in the weasel family
- Creature with a famous pop brand
- Slim, hairy man, in LGBT slang
- Playful aquatic critter
- The Wind in the Willows character
- Playful riverbank dweller
- Sinuous swimmer
- Animal House fratman
- Ring of Bright Water critter
- Abalone eater
- It has kittens
- Member of the weasel family
- Weasel kin
- Wolverine's playful cousin
- Ferret kin
- River mammal
- Riverside frolicker
- Web-footed animal
- Playful sea critter
- Sleek swimmer
- Swimming mammal
- Playful aquatic animal
- Furry aquatic mammal
- River critter
- Fur-bearing freshwater mammal
- Playful swimmer hunted for its fur
- Streamlined swimmer
- Expert swimmer of the weasel family
- Frisky mammal
- Mink's cousin
- Playful marine mammal
- Playful zoo critter
- River romper
- Eric Stratton's moniker, in "Animal House"
- Furry river animal
- Semiaquatic mammal
- Abalone lover
- Animal known for its playful behavior
- Skunk's cousin
- Cousin of a mink
- Marine mammal with webbed paws
- Playful river mammal
- Riverside romper
- Sleek river swimmer
- Sleek, fur-covered swimmer
- Portly's dad in "The Wind in the Willows"
- Riverbank frolicker
- Web-footed aquatic mammal
- Relative of the wolverine
- The Seattle Aquarium's Edwin, e.g.
- Clam consumer
- ___ Pops
- Wind in the Willows animal
- Aquatic animal
- Weasel cousin
- Animal House nickname
- Mink's kin
- Weasellike mammal
- Frisky swimmer
- Mink cousin
- Aquatic frolicker
- Furry player
- Mud-sliding mammal
- Musk secreter
- Pup bearer
- Aquatic player
- Aquatic weasel-family member
- Mud bank slider
- Aquatic fun lover
- Furry aquatic frolicker
- Eric Stratton's "Animal House" nickname
- Playful fish eater
- Weasel relative
- Playful river critter
- Furry river critter
- Polecat relative
- Amusing zoo creature
- River player
- Critter that sleeps floating on its back
- Web-footed critter
- Furry fish eater
- Mink relative
- Polecat cousin
- River rollicker
- Playful swimming mammal
- Badger relative
- Playful marine animal
- River swimmer
- Aquarium cutie
- Frolicking swimmer
- Mammal at an aquarium
- Critter that eats while floating on its back
- Mammal that uses kelp as a blanket
- Playful river animal
- Mudbank frolicker
- Urchin-eating mammal
- Animal with the thickest fur of any mammal
- Marine mammal that uses rocks to crack shells
- Oyster cracker?
- Playful furry swimmer
- Swimming mammal in Native American totems
- Beaver kin
- Muppet Emmet
- Aquatic creature
- Web-toed mammal
- Playful river dweller
- Playful water dweller
- Animal House character
- Bewhiskered animal
- Water mammal
- Fur source
- Sea mammal
- Dark brown fur
- One in the weasel family
- Riverbank cavorter
- Aquatic weasel
- Playful splasher
- Sea __
- Furry river swimmer
- Wolverine cousin
- Wolverine kin
- Beast in the weasel family
- It may run through a river
- Muskrat cousin
- Ferret cousin
- Waterslide constructor
- Beast with water-repellent fur
- Certain Thames swimmer
- Bank slider
- Bewhiskered swimmer
- Furry river mammal
- River-frolicking mammal
- Swimmer that likes to play
- Fur resembling beaver.
- Lustrous fur.
- Sea creature
- Fur coat sporter
- Character in "The Wind in the Willows"
- See 5-Down
- Furry frolicker in the water
- Seaweed the Beanie Baby, e.g.
- Lutrine creature
- New type of ship.
- Nutria.
- U. S. submarine.
- Underwater device for severing mines.
- Musteline mammal.
- Web-footed carnivore.
- Valuable fur.
- Whiskered sea animal.
- Kind of fur.
- Expensive fur.
- Ship's mine-sweeping device.
- Beaver-like fur.
- Fur.
- Naval device for clearing mines.
- Thornton Burgess' "little Joe."
- Brown color.
- Fur-bearing animal.
- Mammal of the weasel family.
- Mine-sweeping device.
- Piscivorous mammal.
- Relative of the mink.
- Weasel's cousin.
- Sea animal.
- Fur animal.
- Mink's relative.
- Relative of a weasel.
- Coat fur.
- Water animal.
- Brown fur.
- Fur-bearing mammal.
- Furry mammal.
- Shade of brown.
- Furred fisher.
- Water carnivore.
- Musteline animal.
- Badger's relative
- Paravane
- Fishing animal
- Furry beast
- Relative of a mink
- Water creature
- Minklike swimmer
- Wind in the Willow character
- Aquatic fish-eater
- Badger's kin
- Marine mammal
- Fun-loving furbearer
- Playful slider
- Beaver's playmate
- Kind of sheep or civet
- Utah's or Vermont's ___ Creek
- Vermont's ___ Creek
- Beaver's cousin
- Furry water mammal
- Playful water creature
- Kind of board tied to a trawl net
- Lithe animal
- Kind of hound
- Part of a trawler's gear
- A mustelid
- Agile swimmer
- Shiny fur
- Fur type
- Mink's poor cousin
- Stream animal
- Glossy brown fur
- Playful water animal
- Relative of a ferret
- The Water Rat's friend
- River ___
- Sea ___
- Certain fur
- SeaWorld performer
- Animal that has kittens
- Sea ___ (fur animal)
- Social swimmer
- Furry floater
- Virginia's ___ River
- Lupine : wolf :: lutrine : ___
- Stream bank cavorter
- Musk maker
- Sleek, lustrous fur
- Thick fur
- Water-loving animal
- Animal House character named for an animal
- A pup is a young one
- Animal known to "juggle" rocks
- Animal that's known to enjoy water slides
- Mammal that can hold its breath up to eight minutes
- Old coat material
- Playful creature
- Bewhiskered fish lover
- Sea ___, denizen of the North Pacific
- Ursine : bear :: lutrine : ___
- Animal in a lodge
- Animal that eats while floating on its back
- Burrow : rabbit :: holt : ___
- Prized fur
- Stream critter
- Animal that plays along streams
- Boon's "Animal House" buddy
- Bewhiskered frolicker
- Sleek fur
- Whiskered creature
- Animal cavorting by a stream
- Animal that may swim on its back
- Furry oyster cracker
- Mammal with webbed paws
- Leonine : lion :: lutrine : ___
- Pod : whale :: raft : ___
- Staple of the fur trade in the 1700s-1800s
- Web-footed creature
- Animal sought in 2016's "Zootopia"
- Lead-in to hound, in the canine world
- Playful animal on a stream bank
- SeaWorld frolicker
- Animal known to chase its tail
- Animal that frolics in streams
- Hermione's Patronus, in the Harry Potter books
- Den : bear :: holt : ___
- Non-fish aquarium attraction
- River gamboler
- Whiskered, fish-eating creature
- Animal known to crack shells with rocks
- Bewhiskered river swimmer
- Much-trapped animal in wilderness America
- Playful furry creature
- It's said to have the thickest fur of any mammal
- Mammal with a pouch where it can store its favorite rock
- Web-footed diver
- Animal in the same family as the wolverine
- Animal with webbed feet
- Shade of brown paint
- With 93-Across, young river critter
- Animal in a romp
- Animal that might make a waterslide to play on
- Cousin of a wolverine
- Playful semiaquatic animal
- Pride : lion :: raft : ___
- Furry fisherman
- 'The Wind in the Willows' critter
- Shellfish snacker
- Tall, slim, and hairy gay man
- Playful sea creature
- Playful sea animal
- Ferret's kin
- Wolverine's aquatic relative
- Word with Pops or pups
- Animal in a raft (in water) or a romp (on land)
- Sea creature from the weasel family
- Animal known for being playful
- Trickster animal of Japanese folklore
- Blubberless marine mammal
- Marine mammal with water-resistant fur
- Animal in the weasel family
- River mammal known to build slides
- Water-loving member of the weasel family
- Swimming mustelid
- Ring of Bright Water animal
- Aquatic favorite
- Dark fur source
- Seal's kin
- National Aquarium favorite
- Playful sea mammal
- Fish-hunting mammal
- Freshwater carnivorous mammal
- Playful river creature
- Aquatic critter
- Frisky fisher
- Jim Henson's Emmet
- Musk creator
- Flounder's frat brother in "Animal House"
- Water weasel
- Riverbank critter
- Bewhiskered mammal
- Certain freshwater mammal
- Furry water-loving mammal
- Certain web-footed creature
- Splashy mammal
- Weasel-like creature
- Animal that aptly rhymes with "water"
- Oyster-eating mammal
- Weasel's aquatic cousin
- Carnivorous aquatic mammal
- Monterey Bay Aquarium mammal
- Adorable animal in a river
- Cute aquatic mammal
- Weasel's aquatic relative
- Cute mammal in a river
- Short-armed aquatic mammal
- Aquatic animal that sleeps on its back
- Cute animal in a river
- Lutra canadensis
- Badger's cousin
- Aquatic carnivore
- Water critter
- Ring of Bright Water creature
- River in Virginia
- It swims in a fur
- Animal House moniker
- Abalone fancier
- Bewhiskered critter
- Sleek, furry swimmer
- Endangered sea mammal
- Animal that has pups
- Mink's poorer cousin
- Tobogganing mammal
- Animal House animal
- Sea or river animal
- Animal House frat brother
- Sleek mammal
- Playful kin of the badger
- Playful, web-footed mammal
- Playful carnivore
- Playful weasel relative
- Tail-chasing aquatic mammal
- Cute river animal
- Hand-holding sea animal
- Mammal that might eat 20 pounds of food per day
- Playful mammalian swimmer
- Weasel-like river mammal
- Adorable river animal
- Asian small-clawed ___
- Ferret relative
- Mink's larger relative
- Water sporter
- California sea swimmer
- Muppet Emmet, e.g.
- One who might make a run on the banks
- What Marlene is in "The Penguins of Madagascar"
- Player catching crabs, maybe
- Animal raising pups
- Mammal that eats while floating on its back
- Playful river mustelid
- Animal with webbed paws
- Mammal known for tobogganing
- Marten's cousin
- Agile aquatic animal
- Wolverine's cousin
- Marten's kin
- Playful pup, perhaps
- River rascal
- Aquatic acrobat
- Mink kin
- Clam-breaking creature
- Weasel's semiaquatic cousin
- Mammal with the densest fur
- Swimmer with a den
