Animals rely heavily on their ability to hear minute natural noises – the movement of predators, the trickle of a stream. Noise pollution may cover up those sounds, putting wild creatures at risk.

WASHINGTON (AP) — The call of the wild is getting harder to hear. Peaceful, natural sounds— bird songs, rushing rivers and rustling grass — are sometimes being drowned out by noise from people in many ...

WASHINGTON — The call of the wild is getting harder to hear. Peaceful, natural sounds — bird songs, rushing rivers and rustling grass — are sometimes being drowned out by noise from people in many of ...

When bats go hunting by listening for faint rustling sounds made by their quarry on a quiet night they don't have any problems. But what happens when a bat goes foraging next to a noisy highway? Can ...

WASHINGTON (AP) — The call of the wild is getting harder to hear. Peaceful, natural sounds— bird songs, rushing rivers and rustling grass — are sometimes being drowned out by noise from people in many ...

In this photo provided by the National Park Service a National Park Service staffer sets up an acoustic recording station on Going-to-the-Sun Road to capture the impact of traffic on acoustic ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. WASHINGTON, D.C. — The call of the wild is getting harder to hear. Peaceful, natural sounds— bird ...

WASHINGTON (AP) — The call of the wild is getting harder to hear. Peaceful, natural sounds— bird songs, rushing rivers and rustling grass — are sometimes being drowned out by noise from people in many ...

WASHINGTON - The call of the wild is getting harder to hear. Peaceful, natural sounds— bird songs, rushing rivers and rustling grass — are sometimes being drowned out by noise from people in many of ...

WASHINGTON — The call of the wild is getting harder to hear. Peaceful, natural sounds— bird songs, rushing rivers and rustling grass — are sometimes being drowned out by noise from people in many of ...