What kinds of animals usually live in the areas often represented on a blue map?

It's tricky to answer this without knowing what you mean by a "blue map." Maps are usually colored to represent different things. Here are some possibilities:

* Water features: If your "blue map" represents water features like oceans, rivers, and lakes, you'd find aquatic animals like:

* Fish: Many different types, from tiny guppies to giant whales

* Marine mammals: Dolphins, whales, seals, walruses

* Reptiles: Sea turtles, sea snakes

* Invertebrates: Crabs, lobsters, jellyfish, coral, starfish, sea anemones

* Elevation: If "blue" on your map represents low elevation areas, you'd find animals adapted to those environments. This might include:

* Grassland animals: Antelope, zebras, lions, giraffes (depending on the region)

* Forest animals: Deer, squirrels, birds, insects

* Swamp animals: Alligators, frogs, snakes, birds

* Temperature: Blue sometimes represents cooler temperatures. In these areas, you'd find animals adapted to colder climates, like:

* Arctic animals: Polar bears, seals, penguins

* Mountain animals: Goats, marmots, mountain lions

To give you a better answer, tell me more about the map you're thinking of! What does the blue represent?