Your running pace is usually measured by your average mile time, or at least, by what I understand. I'm a competitive distance runner, so I'm also familiar with the term Race Pace - which is the pace you run at during a race. These are different.
Young hippos can only stay under water for about half a minute, but adults can stay submerged up to six minutes. Source(s): http://www.awf.org/wildlives/140 johnslat Â· 1 decade ago
The word hippopotamus comes from the Greek word for water horse or river horse.. However, hippos and horses are not closely related. The closest living relatives to hippos are pigs, whales and dolphins, according to the San Diego Zoo.