Adaptations That Help Eagles Survive Background An "adaptation" is a physical or behavioral feature that evolved in response to an organism's environment, due to pressures for survival. How a species looks (its anatomy), as well as how it behaves (how it moves, obtains food, reproduces, responds to danger, etc.) are all based in the species' evolutionary history. In this lesson, we'll look closely at eagles, from head to toe. Remember: There's always a WHY behind WHAT you see. So whenever you see an unusual behavior or body part, ask yourself WHY...
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