Swimming is ability to not drown.
LOL yes. Drowning is defined as respiratory impairment from being in or under a liquid, which is scary to think about
Swimming can be taught at an early age.
YEah,  On average, the body has a relative density of 0.98 compared to water, which causes the body to float; which is a cool little tid bit of info
Yes if density is less than one, you can float!
Swimming is “low-impact” compared to land activities such as running; so it's  a good exercise for older people
Agree. Elders with arthritis, swimming is best type of excercise for joints.
 a formalized sport, swimming features in a range of local, national, and international competitions, including every modern summer Olympics!!
The breast stroke is the best for beating time.
Oh cool! Swimming relies on the natural buoyancy of the human body; Were you aware of this?