Freshwater Animals:
* Fish: Carp, catfish, trout, bass, pike, minnows, goldfish
* Amphibians: Frogs, toads, salamanders
* Reptiles: Turtles, snakes (some species)
* Insects: Dragonflies, water striders, mayflies, mosquitoes, caddisflies
* Mammals: Beavers, otters, muskrats, water shrews
* Birds: Ducks, geese, herons, kingfishers
* Other invertebrates: Crayfish, snails, clams, mussels, leeches, water mites
Saltwater Animals:
* Fish: Sharks, rays, tuna, marlin, salmon (some species), cod, flounder, herring, eels
* Mammals: Whales, dolphins, seals, sea lions, walruses
* Reptiles: Sea turtles, marine iguanas (Galapagos Islands)
* Birds: Penguins, seabirds (albatrosses, gulls, petrels), shorebirds (sandpipers, plovers)
* Invertebrates: Crabs, lobsters, shrimp, jellyfish, corals, starfish, sea urchins, squid, octopuses
Animals Found in Both Fresh and Saltwater (Euryhaline):
* Fish: Salmon (life cycle includes both freshwater and saltwater), some species of eels, bull sharks
* Invertebrates: Some species of crabs and shrimp
Important Considerations:
* Adaptations: Animals in both freshwater and saltwater environments have unique adaptations to survive in their specific environments. For example, saltwater animals have mechanisms to deal with salt buildup, while freshwater animals must conserve water.
* Variety: The specific animals found in a given freshwater or saltwater environment depend on factors such as location, climate, and habitat.
* Conservation: Many freshwater and saltwater animals face threats from pollution, habitat loss, and overfishing. It's important to protect these ecosystems for the health of the planet and the biodiversity they support.