We are discussing all the remote Environments and that is so wonderful to discuss, yet I am wondering if anyone pays attention to the Environment that is very close to us, right at home, in the form of cockroaches

,bed bugs,lizards,rats and flies.
I have been studying cockroaches informally. These are nearly immortal beings, in that they persistently crop up even after colonies have been destroyed.The one reason they are not easily killed is their blood-its white.They in fact have no blood based constitution, so they survive many poisons that would have killed blood based bio-organisms.I have watched how for more than four or five years, german cockroaches continued to surface at home, sometimes when neighbours drove them away, they came in pairs and multiplied in my kitchen. I tried to destroy this infestation using a gel poison that consists of poison laced in blobs of gel,the gel being the bait and food, which these creatures eat carelessly, and eventually the poison gets them.I noticed they even learnt to avoid eating this and survived. I then tried phosgene gas.This worked wonders though I had to stay out of home for three days to have it effectively work.The third but gory way of destroying them is Piff-Paff or Baygon.Its always a direct impact biological warfare that succeeds. This so far is my personal opinion, and I just can't let them wander freely at home with nothing to do.
Biologists however have different opinions,mostly derived from study, and here are some facts.
http://blog.hmns.org/?tag=can-roaches-hurt-you
Excerpts from the above URL.
Let’s start with the basics; cockroaches are insects with 6 legs, 3 body parts, 1 pair of antennae, and sometimes, 2 pairs of wings.These insects are most closely related to termites and praying mantids which have been known as “specialized cockroaches.” Did you know that there are about 4000 different species of cockroach worldwide? We’re used to seeing the brown ones, but they can be green

, white

, or even dark blue

. Some can even have elaborate patterns with colors like red

and orange

. They live in almost every climate; however, they are mostly concentrated in tropical climates. Most roaches live in forests, making homes of trees, rotten logs and leaf litter. They spend their lives as scavengers and decomposers. They rid the world of decaying organic matter and replace it with nutrients that feed the soil and plants. They are one of our most important decomposers, and our existence depends on them! Sometimes, however, they can get a little too close to home.
If you keep your house clean, well organized, and in good repair, you may see one of these roaches in your house from time to time. Do not panic, it probably wandered in from outside and it’s very unlikely that you have a heavy infestation. Now, if you keep your house dirty, cluttered, and falling apart, well, you are welcoming every roach in a mile radius.
A familiar species of cockroach is the German Cockroach Blatella germanica. These roaches are very small, light brown, and have 2 longitudinal stripes just below the head. Unlike the American cockroach, German cockroaches are highly adapted to living only in human dwellings, completely dependent on the filth humans leave behind. So, if you see one of these roaches in your house, it is very possible that you do have a very serious infestation. Here are some common myths about roaches and the real truth behind them.
ROACH FALLACIES AND TRUISMS
Roaches are dirty.
False! Roaches are obsessive compulsive about cleanliness! They spend most of their time resting, and the rest of their time cleaning themselves, much like a cat. Roaches are actually some of the cleanest animals around.
Roaches spread disease
Trufalse. This is a little less clear cut. Roaches themselves do not have diseases, but can transmit germs with their hairy legs and sticky feet. For example, if you leave residue from raw meat on your counter, it is possible a cockroach may walk through it and track it around, but if your counter is clean and disinfected, that roach will stay clean! There have actually been studies where a cockroach and a human finger touched the same dirty kitchen floor. They were each swabbed and the swab was smeared into a petri dish to be cultured. at the end of the study, the human finger produced several times the amount of bacteria the cockroach did.
So watch where you put that finger!
Roaches can hurt you
False! Roaches are equipped with no more than a set of jaws for chewing. They are capable of biting, which would not hurt at all – but that’s really not their style; they’re more into running away. They have no stinging appendages or anything like that. They are harmless.
Roaches can live for two weeks with no head.
Ok, this one is actually true. The reason for this is that a roach has several brains throughout its body, not just one in its head. They are really just ganglia or bunches of nerve cells. The one in the cockroach’s head only controls its antennae and mouthparts. Remove the head, and it will still be able to control its legs which are equipped with millions of sensory receptors, allowing it to find its way quite well. Eventually, though, the insect will be overcome by dehydration and die.
I saw an albino cockroach!
False! It’s likely that the cockroach you saw is one that has just shed its skin. A freshly molted cockroach is white with black eyes, and very soft and vulnerable. After a few hours, its new skin will start to harden and grow darker, until it is the original color.
Cockroaches can give my child asthma
True. Unfortunately, a heavy infestation of cockroaches can cause asthma in allergen-sensitive individuals, especially children. If you have hundreds of cockroaches in your walls, the feces will build up and become airborne. This is all the more reason to keep your house clean!
Well, there you have it folks, the skinny on cockroaches. I hope that some of you may look at cockroaches in a new light and next time you see one – give it break! It’s not their fault they have a bad rap. If you still feel nauseous thinking of them, just make sure your house is sparkling clean. If we clean up after ourselves, the roaches don’t have to do it for us. Skip the poison, it’s bad for the environment and kills all of those wonderful bugs everyone loves to see. Until next time, happy bug watching!