Meet some of the people featured in the June 2021 issue of The Scientist.

Sound from cars, aircraft, trains, and other man-made machines is more than just annoying. It increases the risk of cardiovascular disease.

By analyzing how fin whale calls bounce off the seafloor, scientists can recreate ocean crust layers.

As shelter-in-place orders quieted the city of San Francisco, its sparrow population developed softer, sexier songs.

Eight environmental groups took the legal measure in an effort to protect North Atlantic right whales and other marine organisms.

The Atlantic has been free of intense air-gun blasts to probe for oil and gas for 30 years, and researchers fear for endangered North Atlantic right whales and other animals.

Traffic noise disrupts communication between dwarf mongooses and tree squirrels, according to a study.

Constant exposure to the sounds of a busy road can impact a male European tree frog’s stress levels, immune system, and vocal sac coloration, scientists show.

Researchers report the first evidence that nearby vessels may impair the cetaceans’ foraging abilities.