Final answer:
Gazelles use more than one strategy to avoid predators.
Step-by-step explanation:
The main idea that ties all the details together is that gazelles use more than one strategy to avoid predators. The first detail mentions that gazelles can run fast to escape from predators. The second detail states that young gazelles can hide in tall grass for protection. And the third detail explains that when gazelles sense a predator nearby, they warn the herd by stomping their feet. These details all support the main idea that gazelles have multiple strategies to avoid being caught by predators.
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