In The Zombie Shadows Chapter 14

The aliens come from different galaxies and have very different eating habits.

Albedo species spend most of their time in the water, their staple food is fish and seaweed, and they only occasionally hunt land creatures;

The residents of Astral like to hunt animals, and their favorite is a kind of strange beast that is similar to a lizard. The blood of this alien beast is an important source of moisture for them;

The populations of Altar and Altar can live on ore, which also causes them to be more alienated from the populations of other galaxies;

Altar Alba is an immigrant star with a large population and the richest diet. The menu for the inhabitants of this galaxy includes almost every species of sea, land and air.