Question

why do the penguin are not are not able to fly​

Answer 1

Explanation:

Scientists believe penguins can't fly because they likely had little or no threat from predators in their past. That means they never evolved to fly because they didn't have anything to fly away from. ... They relied on the oceans for food, so developing flippers to swim well was more important than growing wings to fly.

Answer 2

Answer:

because of their heavy weight