Sharks?

In game space monsters that hurt if they appear early. Tough but slow

one of the easiest ways to deal with them is to ignore them -all of the AI's are automaticaly "at war" with them, so all the AI's will come and attack them, even if they are at the other end of the galaxy. i only attack them myself if i have some important starbases nearby.

ps. they move very, very slow, only 1 space per turn. at this speed, its very easy to avoid them, thats why i dont bother attacking them.