{"The Martians are described as octopus-like creatures; the "body" consists of a disembodied head about four feet across, having two eyes; a beak-like mouth; and two branches of eight 'almost-whip like'tentacles each around the mouth, which have been nicknamed the 'hands'."} http://en.wikipedia.org/wiki/Martian_(War_of_the_Worlds)#In_the_novel
The octopus like creature is depicted in, Monsters_(2010_film), www.imdb.com/media/rm1483833344/tt1470827, www.monstersthemovie.com/monsters.html, www.monstersfilm.com,
Perhaps genetically engineered versions of the squid & octopus could be adapted to infiltrate various kinds of worlds.
www.livescience.com/largest-sea-predators-fossils.html,
http://ngm.nationalgeographic.com/ngm/0512/feature3/multimedia.html,
www.strangescience.net/stsea2.htm,
http://news.nationalgeographic.com/news/2012/10/pictures/121009-glowing-bioluminescence-oceans-animals/#/deep-sea-caribbean-creatures-glow-bathynomus_60020_600x450.jpg
www.prometheus-movie.com/community/forums/topic/8975,
www.wired.com/underwire/2012/06/prometheus-the-art-of-the-film,
http://c-shapes.blogspot.ca/2012/09/battleships.html
In the summer, people first got to see David8, the giants, the worms, the snakes & the squid like creature implant a giant engineer with something else.
http://monstersandbeasts.blogspot.ca/2012/06/trilobite-vs-engineer-prometheus.html
The fall release of the DVD-BD tremendously expands the data-spectrum of the Prometheus storyline.
"With over seven hours of special features."
www.youtube.com/watch?v=dd1VqCtJY3E&feature=player_embedded
www.prometheus-movie.com/news/346, www.prometheus2-movie.com
Quite an excellent article about a what if?, alternate version of Prometheus.
http://screenrant.com/prometheus-changes-alien-vic-178488
http://c-shapes.blogspot.ca/2012/10/prometheus-and-aliens.html,
http://c-shapes.blogspot.ca/2012/11/snakes.html
Monsters from other worlds & other dimensions.
http://c-shapes.blogspot.ca/2012/05/negative-entities-monstrous-forces.html,
http://www.youtube.com/watch?v=bB28xXEdBGg&feature=related