look like the little green men type aliens though they have a more
insect look to them. Thyeir antennae are basically used to show how the
irken feels, going either up or down. Irkens also use their attennae to
salute the Tallest, wiggling it. Though saluting to any other
creature or irken they use their hands like humans. Though no nostrils
are to be seen irkens seem to breathe in the same area where our nose
would be. Irkens may or may not breathe through their eyes because in
Rise of the zit boy Zim said dib would look because he had to breathe
eventually though if this is for irkens or other creatures is unknown.
Irken eyes come in red, green and purple. Also each color has many
different shades. Red seems to be most common, and green to be
very rare. Ikren eyes have a shine that once the irken dies or
becomes retarded is lost. Invaders have eye implants that enhance and
strengthen their eyes. Though whether or not all irkens have this is
unknown. Ikren tongues look like earthworms and can extend rather long.
Irken teeth are connected in rows. Irkens also do not require sleep.
Irken females have curlly atennae, and sometimes longer eyelashes.
Really that seems like some of the only differences. Irken females also
have higher pitched vioces. Irkens dont grow as much as humans, but
they do grow. They start out as smeets,irken babies, and grow toward
their final height. Whther or not it is one grow spurt or a bunch of
little growth spurts is unknown. The differnce between tallests and
other irkens are heir growth spurts. Young tallest start out the same
height as other irkens but grow more then the others. Irken diet seemms
to be mainly of snack food, and soda. Earth water, meat, and anything
consisting of earth water causesx irkens pain. Some foods though cause
allergic reactions. Though this isnt really a problem since irk and
earth are seperated by a very long distance.