Animals adapt to fast-flowing water when their environment is characterized by such waters.
migration
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mostly they live in India in cold fast moving water if you would watch "River Monsters " on animal planet then it might tell you more about it .
A river in the mountains is moving faster than a river on a plain because it is losing altitude faster. A river on a plain is still moving with gravity, but not at the same steepness. The faster the river is moving, the more sediment it is taking which would form a valley much deeper and faster.
Warm coats
No animal can survive without both. Even having legs is a physical adaptation. If an animal had no behavioral adaptations, it would just sit in one place and die of starvation. So jackrabbits have both physical and behavioral adaptations.
What does all moving water have in it
What does all moving water have in it
Sharp teeth, claws, speed
Mosses have hair-like structure that can attach to rock
That would be a current, such as a river or ocean current.
Mosses have hair-like structure that can attach to rock