What characteristic describes the warning sounds used by some animals?

What characteristic describes the warning sounds used by some animals?

• A. High frequency, melodic
• B. Low frequency, noisy
• C. Soft and quiet
• D. Quick and staccato

Answer: (B)

Warning sounds are meant to reach group members quickly, over long distances and through possible obstacles. Low-frequency sounds travel farther in air and terrain, making them effective for warning others of danger. They’re often loud and rough rather than musical, which helps grab attention and convey urgency. That’s why the best description is low frequency and noisy. High-frequency or melodic calls don’t propagate as far and soft or quiet sounds wouldn’t alert others, while quick and staccato can be abrupt but doesn’t capture the broad-distance effectiveness that low-frequency, noisy warnings typically rely on.

Warning sounds are meant to reach group members quickly, over long distances and through possible obstacles. Low-frequency sounds travel farther in air and terrain, making them effective for warning others of danger. They’re often loud and rough rather than musical, which helps grab attention and convey urgency. That’s why the best description is low frequency and noisy. High-frequency or melodic calls don’t propagate as far and soft or quiet sounds wouldn’t alert others, while quick and staccato can be abrupt but doesn’t capture the broad-distance effectiveness that low-frequency, noisy warnings typically rely on.