Agriculture
Microbes at the Gas Pump
Flush-Free Fertilizer
Treating peanut allergy bit by bit
Amphibians
Newts
Bullfrogs
Toads
Animals
Armadillo
Little Beetle, Big Horns
Clone Wars
Behavior
Flower family knows its roots
Giving Sharks Safe Homes
Memory by Hypnosis
Birds
Condors
Storks
Vultures
Chemistry and Materials
Mother-of-Pearl on Ice
Meteorites may have sparked life on Earth
These gems make their own way
Computers
Graphene's superstrength
Galaxies on the go
The solar system's biggest junkyard
Dinosaurs and Fossils
A Big, Weird Dino
Mammals in the Shadow of Dinosaurs
Early Birds Ready to Rumble
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
Earth
Earth's Lowly Rumble
In Antarctica watch the heat (and your step)
Sky Dust Keeps Falling on Your Head
Environment
A Stormy History
The Birds are Falling
Antarctica warms, which threatens penguins
Finding the Past
The Puzzle of Ancient Mariners
A Long Trek to Asia
Stonehenge Settlement
Fish
Cleaning Up Fish Farms
A Grim Future for Some Killer Whales
Megamouth Sharks
Food and Nutrition
Sponges' secret weapon
Chew for Health
Turning to Sweets, Fats to Calm the Brain
GSAT English Rules
Subject and Verb Agreement
Whoever vs. Whomever
Who vs. Whom
GSAT Exam Preparation Jamaica
2014 GSAT Results for Jamaican Kids
Ministry of Education Announces 82 GSAT Scholarships for 2010
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
GSAT Exams Jamaica Scholarships
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT stars reap scholarship glory
2014 GSAT Results for Jamaican Kids
GSAT Mathematics
Math and our number sense: PassGSAT.com
42,000 students will sit for the GSAT Exam in two weeks
Prime Time for Cicadas
Human Body
Spit Power
Cell Phone Tattlers
A Fix for Injured Knees
Invertebrates
Mussels
Mollusks
Krill
Mammals
Bats
Siberian Husky
Horses
Parents
Expert report highlights the importance to parents of reading to children!
The Surprising Meaning and Benefits of Nursery Rhymes
What Not to Say to Emerging Readers
Physics
One ring around them all
Road Bumps
Spin, Splat, and Scramble
Plants
Surprise Visitor
Tracking the Sun Improves Plant Pollen
Cactus Goo for Clean Water
Reptiles
Crocodiles
Rattlesnakes
Caimans
Space and Astronomy
Tossing Out a Black Hole Life Preserver
Catching a Comet's Tail
Phantom Energy and the Big Rip
Technology and Engineering
Are Propellers Fin-ished?
Shape Shifting
Crime Lab
The Parts of Speech
Pronouns
What is a Noun
What is a Preposition?
Transportation
Seen on the Science Fair Scene
Reach for the Sky
Middle school science adventures
Weather
A Change in Climate
Antarctica warms, which threatens penguins
Where rivers run uphill
Add your Article

Cockroaches

There are roughly 3,500 species of cockroach, in 6 families. Cockroaches exist worldwide, with the exception of the polar regions and in elevations above 6,500 ft. Among the most well-known species are the American cockroach, which is about 3 cm long, and the German cockroach, about 1.5 cm long. Tropical cockroaches are often much bigger. When infesting buildings, cockroaches are considered pests. Versatile eaters: Cockroaches are generally either scavengers or omnivores. The exception to this is the wood eating Cryptocercus species found in China and the United States. Although they are incapable of digesting plant matter, they have a symbiotic relationship with a protozoan that digests the cellulose in plants, allowing them to extract the nutrients. In this, they are similar to termites and current research suggests that the Cryptocercus is more closely related to termites than it is to other cockroaches, making it an evolutionary link between cockroaches and termites. Cockroaches are most common in tropical and subtropical climates. Some species are in close association with human dwellings and widely found around garbage or in the kitchen. Night dwellers: Cockroaches are mainly nocturnal, and will run away when exposed to light. A peculiar exception is the Oriental cockroach which is attracted to light, thus making it a far more annoying pest. Roaches are called the custodians of nature. They only live in houses where there are crumbs to eat or the garbage can is uncovered. They lay eggs inside the house's hollow walls. Super-roach!: The roach is also one of the hardiest insects on the planet, capable of living for a month without food and remaining alive headless for up to a week. It can also hold its breath for 45 minutes and has the ability to slow down its heart rate. Cockroaches also have a very high resistance to radiation. A common urban legend that cockroaches can survive a nuclear attack is in fact true. Cockroaches have been shown to make group decisions. Hansel and Roachel: New research being conducted at the University of Florida shows that cockroaches leave chemical trails in their feces. Other cockroaches will follow these trails to discover sources of food, water, and where other cockroaches are hiding. One of the major implications of this research is a new technique in cockroach pest control. Cockroaches could be potentially removed from a home by leaving a chemical trail that leads away from the home. Female cockroaches are sometimes seen carrying egg cases on the end of their abdomen; the egg case of the German cockroach holds about 3040 long, thin eggs, packed like frankfurters in the case called an ootheca. The eggs hatch from the combined pressure of the hatchlings gulping air and are initially bright white nymphs that continue inflating themselves with air and harden and darken within about four hours. Their transient white stage while hatching and later while molting has led to many individuals claiming to have seen albino cockroaches. A female German cockroach carries an egg capsule containing around 40 eggs. She drops the capsule prior to hatching. Development from eggs to adults takes 34 months. Cockroaches live up to a year. The female may produce up to eight egg cases in a lifetime. In other words, in favorable conditions it can produce 300400 offspring. A regular cockroach, however, can produce an extremely high number of eggs in her lifetime. She lays up to 100 eggs in each egg sac. She only needs to be impregnated once to be able to lay eggs for the rest of her life, allowing one single cockroach to lay over a million eggs in her lifetime.

Cockroaches
Cockroaches








Designed and Powered by HBJamaica.com™