Calming footage shows a sea turtle serenely blowing bubbles underwater in the Cook Islands. Marine experts are trying to figure out why the turtle is behaving in this fashion, but onesays the turtle ...

Some lizards can stay underwater for longer by blowing out and then rebreathing bubbles of air. This has been suspected since the behaviour was first observed, and now experiments have confirmed it.

For us, bubbles put the fizz in champagne and the calm in bathtime. But for several aquatic and land-dwelling creatures, bubbles are also a useful survival tool, whether it’s boosting hunting success ...

Some commercial ships are now releasing a steady stream of bubbles underwater, and the reason is purely functional: reducing drag. This technique, called air lubrication, reduces resistance and helps ...