They swim with their mouths open, cleaning the water as they move.

VOA: special.2009.06.16

Patten, 21, is no stranger to long distance swimming, having come third in the 10km open water swim and making the final of the 800m freestyle in Beijing.

BBC: Patten aiming to swim the Channel

The pool I swim in does not open until 6 a.m. and is not available in the evenings or weekends.

CNN: The key to fitness? Schedule it in

Darker-fleshed fish that swim in cold, open waters, such as tuna, herring, and mackerel, store fat in their flesh and are high in omega-3s.

CNN: How to buy the best fish