11.   Meanwhile, the alien creatures continue to evolve into increasingly nasty subspecies, including winged dinosaurs and fierce blue primates.

12.   NASA discounts the possibility that any living alien creatures will hitch a ride to Earth.

13.   There was no talk of hovering saucers, alien creatures or other levels of evolution on new worlds, Krohn said.

14.   We imagined them resembling tiny burrows where some alien creature had crawled in, become stuck and died.

15.   When you get past the setup, the rest is intoxicating, taking us to dazzling new worlds teeming with outlandish alien creatures.