Could Jupiter Moon Harbor Fish-Size Life?

[DN BROKER]

In the oceans of a moon hundreds of millions of miles from the sun, something fishy may be alive—right now. Below its icy crust Jupiter's moon Europa is believed to host a global ocean up to a hundred miles (160 kilometers) deep, with no land to speak of at the surface. (See "Jupiter Moon Has Violent, Hidden Oceans, Study Suggests.")

http://news.nationalgeographic.com/news/2009/11/091116-jupiter-moon-life-europa-fish.html