How do roaches see in the dark?

Answer 1

insects hear through smalll holes in their butt called tubeisculars,this is where the word 'tube' comes from 'small tubeular holes in certain insects butts that makes it possible for them to hear' tubeisculars also help with the way the antennae work.certain cells connect with that of the antennae and help it to work.

tubeisculars help the following

1.ants

2.certainn cockroaches

3.lotus

4.horse flys

Answer 2

Insects are the only of all invertebrates which have been proved of being capable of distinguishing sounds. A classic proof is an experiment with crickets, when in one room a chirping male was placed in front of a microphone, and in another room with a speaker - a female. When the microphone was switched on, the female moved to the speaker. Do not think that the organs of hearing are similar to human ears: they are located not on the insect's head! Insect's eardrum is a thin part of cuticle sensitive to air vibrations. Adjacent to it inside is an extended trachea with nerves coming to it. The sensitive receptors are located either on the trachea or on the eardrum. In grasshoppers, true crickets, mole crickets these organs are located… on the tibiae of the forelegs, in water bugs and some butterflies - on the chest, in other butterflies, locusts, cicadas - on the abdomen, in some lacewings (Neuroptera or Planipennia) - on the wings. Sometimes the organs of hearing in insects are represented not by an eardrum, but by other structures sensitive to acoustic vibrations. These are so called chordotonal organs, Johnston's organs, etc. They are present, for example, in mosquitoes on the second segment of antenna.

Answer 3

I am trying to find the answer myself, however I can share my experience.

We recently bought an investment property that was infested. It wasn't a really bad infestation, but there is a lot of work to be done. Because there aren't too many, we wanted to see if we could get rid of them on our own and hope they eventually die off...

However, I've noticed during cold days when we come in to do some work, you can usually find many of them huddled up in different corners of the ceiling in this one room.... When we kill some with spray, other roaches in other corners that are out of spray range start scattering and are visibly agitated. So I don't know if they send out sounds that the human ear can't pick up or what... Maybe they have adapted to the sound of the spray and know it means death. I have NO clue. But I just know EVERY time I spray, 5 feet away the other groups would get anxious or scurry away.

And they don't run like there is immediate danger... but they do visibly pick up the pace.

Answer 4

Roaches dont hear they just have antannas to sence what is going on and what will happen

Answer 5

Cockroaches communicate when they are close to each other using chemicals. Studies are still being conducted to show how these chemicals are used exactly.