Nesk

The Nesk were a alien race of insects that lived during the Cretaceous Period.

Biology
The Nesk were a hive-minded race of sapient insects. They could come together to form any size creature they'd like when times called for it in order to operate tools.

Culture and society
Culturally, nothing is known about them, but from several interactions the Nesk appear to be a scavenger race, dedicated to acquiring new technologies for themselves and are highly territorial beings.

History
The Nesk were known, during their era, as a race of scavengers that stole various technologies throughout the galaxy over the years. They settled on Earth around 65,000,000 B.C. and constantly warred with the Mercora, a peaceful race who had also settled on Earth.

After the Mercora aided the time-displaced Animorphs in stealing a nuclear fission device, they evacuated Earth and directed an asteroid toward the planet to destroy the Mercora in an act of spite.

Appearances

 * Megamorphs #2 In the Time of Dinosaurs