Elephants in Kenya's Amboseli National Park have been observed making specific low-frequency rumbles when encountering different threats. Researchers recorded distinct vocalizations for approaching lions, distant lions, and human hunters. When recordings of the 'lion' rumble were played, elephants became alert but calm; the 'human' rumble caused them to flee immediately.
The passage suggests that
elephants may have developed a communication system that conveys specific information about threats
elephants cannot distinguish between different dangers
lions are more dangerous to elephants than humans
all animals use low-frequency sounds to communicate
Correct Answer: A
Choice A is the best answer. Different rumbles produced different behavioral responses.
- Context clues: "Distinct vocalizations" for different threats; different rumbles caused different responses.
- Meaning: Specific sounds producing specific reactions suggests meaningful communication.
- Verify: The 'lion' vs. 'human' rumble causing different behaviors shows information is conveyed.
💡 Strategy: When specific signals produce specific responses, infer intentional communication.
Choice B is incorrect because elephants responded differently to different threats. Choice C is incorrect because fleeing from humans suggests humans are perceived as more dangerous. Choice D is incorrect because the passage only discusses elephants.