Across
- 2. eel A long, snake-like fish that hides in coral reef crevices and pops its head out to snap at food
- 4. A heavy African mammal that spends its days lounging in rivers to keep its skin safe from the sun
- 9. A small, furry rodent that builds houses out of plants in marshes and ponds
- 10. bass A freshwater game fish famous for its huge mouth that can swallow big lures and bait
- 11. A large, elegant white waterbird with a long, graceful curved neck
- 14. white shark A large ocean predator with rows of sharp triangular teeth and an amazing sense of smell
- 15. A large black-and-white dolphin, also called a killer whale, that hunts in family groups
- 17. A bottom-dwelling creature with a hard shell and two large, powerful pinching claws
- 18. river dolphin A rare dolphin that lives in the Amazon River and turns pink as it grows older
- 19. turtle A large freshwater turtle with a sharp, beak-like jaw that can snap shut with great force
- 21. A bright little fish that originally came from wild rivers in Asia and is now a popular pet
- 23. A river mammal with a flat tail that cuts down trees to build wooden dams and lodges
- 24. A large, blubbery arctic mammal with long ivory tusks and whiskers like a mustache
- 27. A cute freshwater salamander that stays in its water-baby form its whole life and can regrow limbs
- 28. strider A tiny insect that can literally walk on top of the water without sinking
- 30. shark A shark with a uniquely shaped flat head that helps it see all around itself
- 32. otter A playful freshwater mammal that loves to slide down muddy banks and swim on its back
- 33. A diving lake bird known for its beautiful, haunting calls that sound like echoes at night
- 34. crab A little crab that doesn't grow its own shell, so it searches for empty snail shells to live in
- 35. A freshwater fish named for the long, sensitive whiskers around its mouth
- 38. A small freshwater creature that looks like a tiny lobster and lives under river rocks
- 39. A large amphibian that lives near water and makes a deep, loud croaking sound
- 40. A fast ocean swimmer with a long, pointed bill that looks like a weapon
- 42. otter A furry ocean mammal that floats on its back and uses rocks to crack open shells for food
- 43. An arctic whale known as the "unicorn of the sea" because of its long, spiral tusk
- 44. squid A deep-sea monster with huge eyes that can grow longer than a school bus
- 45. A clever sea creature with eight arms, three hearts, and the ability to squirt ink
- 46. A see-through, umbrella-shaped creature that drifts in the ocean and has stinging tentacles
Down
- 1. duck A common waterbird where the males have a bright, shiny green head
- 3. A fish born in rivers that swims out to the ocean and then journeys back upstream to lay eggs
- 5. A strange Australian river animal that has a duck bill, a beaver tail, and lays eggs
- 6. A large reptile with a wide, rounded snout that lives in swamps, rivers, and lakes
- 7. anemone A creature that looks like a colorful underwater flower but is actually an animal with stinging tentacles
- 8. dolphin A super smart ocean mammal that communicates with clicks and whistles
- 12. whale A white arctic whale known as the "sea canary" because of its musical chirps and whistles
- 13. turtle A marine reptile that travels thousands of miles and comes ashore to lay eggs in the sand
- 16. A bright orange and white fish that lives safely inside stinging sea anemones
- 18. A fish that balloons up into a prickly ball to scare away predators
- 20. A small South American river fish with razor-sharp teeth that hunts in groups
- 22. A popular freshwater fish with colorful spots that loves to swim in cool, clear rivers
- 23. whale The biggest animal to ever live on Earth that eats tiny shrimp called krill
- 25. A creepy deep-sea fish that uses a glowing light on its head to trick prey into coming close
- 26. A gentle, slow-moving giant often called a "sea cow" that grazes on plants in warm rivers and bays
- 29. eel A long freshwater fish that can zap predators and prey with a powerful shock of electricity
- 31. ray A giant, gentle sea creature that looks like it is flying through the water with huge wings
- 36. A huge, ancient freshwater fish covered in bony plates that has lived since the time of the dinosaurs
- 37. A small bird that sits on branches over rivers and dives headfirst into the water to catch fish
- 40. star An ocean animal shaped like a star that can regrow its arms if it loses them
- 41. A small fish that swims upright and has a prehensile tail to hold onto seaweed
- 42. A flat fish that hides under the sand and has a sharp, venomous barb on its tail