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Type: animal
Alignment
CR
Source
Climate
Movement: Swim
58 creatures
| Name ▲ | CR | Alignment | Size | Description |
|---|---|---|---|---|
| Archelon | 5 | N | Huge | |
| Basilosaurus | 12 | N | Gargantuan | |
| Blue Whale | 12 | N | Colossal | |
| Bull Shark | 2 | N | Medium | |
| Cameroceras | 11 | N | Huge | Emerging from the open end of a long, conical shell, this huge creature’s unblinking eyes peer... |
| Compsognathus | 1/2 | N | Tiny | |
| Constrictor Snake | 2 | N | Medium | |
| Crocodile | 2 | N | Large | |
| Dire Crocodile | 9 | N | Gargantuan | |
| Dire Polar Bear | 8 | N | Large | |
| Dire Rat | 1/3 | N | Small | |
| Dire Shark (Megalodon) | 9 | N | Gargantuan | |
| Dolphin | 1/2 | N | Medium | |
| Elasmosaurus | 7 | N | Huge | |
| Electric Eel | 2 | N | Small | |
| Emperor Cobra | 5 | N | Large | |
| Emperor Walrus | 8 | N | Gargantuan | |
| Frog Father | 5 | N | Huge | This elephantine amphibian has a grotesquely long tongue and beady eyes. |
| Gar | 1 | N | Medium | This long, lean fish has a muscular body and a head with long jaws filled with sharp teeth. |
| Giant Anaconda | 10 | N | Gargantuan | |
| Giant Frog | 1 | N | Medium | |
| Giant Gar | 6 | N | Huge | |
| Giant Octopus | 8 | N | Large | |
| Giant Seahorse | 3 | N | Large | |
| Giant Snapping Turtle | 9 | N | Gargantuan | |
| Giant Squid | 9 | N | Huge | |
| Giant Toad | 2 | N | Large | |
| Goliath Frog | 3 | N | Large | |
| Great White Shark | 4 | N | Huge | |
| Great White Whale | 14 | N | Colossal | |
| Killer Seahorse | 5 | N | Huge | |
| Manta Ray | 1 | N | Large | |
| Megalania | 7 | N | Huge | |
| Monitor Lizard | 2 | N | Medium | |
| Narwhal | 3 | N | Large | |
| Octopus | 1 | N | Small | |
| Orca | 5 | N | Huge | |
| Otter | 1/4 | N | Tiny | |
| Penguin | 1/3 | N | Small | |
| Platypus | 1/6 | N | Tiny | |
| Plesiosaurus | 2 | N | Large | |
| Poison Frog | 1/2 | N | Tiny | |
| Polar Bear | 5 | N | Large | |
| Rat | 1/4 | N | Tiny | |
| Rat Swarm | 2 | N | Tiny | |
| Seal | 1/3 | N | Small | |
| Shark | 2 | N | Large | |
| Snake Swarm | 2 | N | Tiny | Hissing menacingly, this mass of snakes resembles a pile of slithering tentacles. |
| Snapping Turtle | 1/3 | N | Tiny | |
| Spinosaurus | 11 | N | Gargantuan | |
| Squid | 1 | N | Medium | |
| Stingray | 1/2 | N | Medium | |
| Tylosaurus | 8 | N | Gargantuan | |
| Venomous Snake | 1 | N | Medium | |
| Venomous Snake Swarm | 4 | N | Tiny | |
| Viper | 1/2 | N | Tiny | |
| Walrus | 3 | N | Large | Two long tusks jut from the mouth of this bulky, bewhiskered creature. It walks clumsily on... |
| Whale | 10 | N | Gargantuan | This immense whale moves slowly through the water with a grace that seems incongruous, given its... |