Whales communicate through low-frequency vocalizations that can travel hundreds of kilometers underwater. Marine biologists studying whale song over recent decades have noted that ocean noise from shipping has increased substantially, with corresponding evidence that whales now produce louder calls and exhibit altered vocal patterns. In some populations, individuals have ceased calling altogether during periods of intense local shipping activity.
Which choice most logically completes the text? The passage suggests that anthropogenic ocean noise _______
- A
operates only at frequencies whales cannot detect
- B
increases the natural communication range of whales
- C
has no detectable effect on marine animal behavior
- Dcheck_circle
may interact with marine animal communication in ways that have measurable behavioral consequences
Explanation
Louder calls, altered patterns, and silent intervals tied to shipping support B. A, C, D contradict the passage.