The Aliens from 10 Cloverfield Lane are large, worm-like creatures with metal plating on their bodies and are the ending antagonists of 10 Cloverfield lane. The Aliens' origin is unknown. These creatures appear at the ending of the film.
The Aliens are Quadrupedal lifeforms with metallic scales. Each scale is the shape of a hexagon. The aliens also have a secondary mouth that extends from inside their primary mouths. The mouth is circular with rows of sharp teeth. They are in some way biologically related to the Clover (ship).
Arrival On Earth
how the Aliens arrived on earth isn't exactly clear. While on a drive in the country, Emmett describes seeing a bright red flash in the sky. Worried about what this could mean, Emmett rushes over to Howard Stambler's bunker in Louisiana, who was just closing up before the initial attack on Earth. Howard describes these red flashes as the first phase of the invasion. The Arrival was partly hinted when Howard received an audio file containing a hidden image of a mysterious black object orbiting above the Earth.