New research shows sea turtles, penguins and whales swim at optimal depths to minimise the energetic cost of travel.

This guide will explain how to get the Snorkel and Flippers to unlock swimming and diving in Hello Kitty Island Adventure. The Snorkel allows you to dive underwater and explore. This item comes ...

Me eight pool days comprised four conditions ... and diving (resulting in the subject being fully submerged and usually followed by underwater swimming). There was a highly significant decrease in ...