Given a sentence in English, provide an equivalent paraphrased version from the original that retains the same meaning.

Lemmings , by contrast , are conspicuously colored and behave aggressively towards predators and even human observers .
By contrast , the lemmings are strikingly colored and behave aggressively towards predators and even human observers .

La Unión is a city in Ezeiza Partido , in the Greater Buenos Aires , Argentina .
La Unión is a town in Ezeiza Partido , in the Greater Buenos Aires , Argentina .

The festival was founded in 2007 and debuted in Phoenix , Arizona and has been held in San Diego , Houston and Zurich since then .

The festival originated in 2007 and debuted in Phoenix , Arizona and has since been held in San Diego , Houston and Zurich .