Agriculture
Got Milk? How?
Watering the Air
Protecting Cows—and People—from a Deadly Disease
Amphibians
Newts
Frogs and Toads
Toads
Animals
Poor Devils
Color-Changing Bugs
Sleep Affects a Bird's Singing
Behavior
A Grim Future for Some Killer Whales
Brain cells take a break
Supersonic Splash
Birds
Geese
Parakeets
Hummingbirds
Chemistry and Materials
Silk’s superpowers
The science of disappearing
The chemistry of sleeplessness
Computers
New eyes to scan the skies
Hubble trouble doubled
Programming with Alice
Dinosaurs and Fossils
An Ancient Spider's Web
From Mammoth to Modern Elephant
Dinosaur Eggs-citement
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Earth
Slip Slidin' Away—Under the Sea
Farms sprout in cities
Challenging the Forces of Nature
Environment
Seabirds Deliver Arctic Pollutants
City Trees Beat Country Trees
A Stormy History
Finding the Past
A Big Discovery about Little People
A Long Trek to Asia
The Taming of the Cat
Fish
Angler Fish
Electric Eel
Codfish
Food and Nutrition
Packing Fat
Making good, brown fat
Chew for Health
GSAT English Rules
Order of Adjectives
Finding Subjects and Verbs
Problems with Prepositions
GSAT Exam Preparation Jamaica
Mastering The GSAT Exam
2014 GSAT Results for Jamaican Kids
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Exams Jamaica Scholarships
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Scholarship
42,000 students will sit for the GSAT Exam in two weeks
GSAT Mathematics
42,000 students will sit for the GSAT Exam in two weeks
Monkeys Count
How to Slice a Cake Fairly
Human Body
A New Touch
Foul Play?
Music in the Brain
Invertebrates
Shrimps
Crabs
Horseshoe Crabs
Mammals
Gray Whale
Bonobos
Dogs
Parents
Choosing a Preschool: What to Consider
Children and Media
How children learn
Physics
Invisibility Ring
Speedy stars
One ring around them all
Plants
Fastest Plant on Earth
Fungus Hunt
Assembling the Tree of Life
Reptiles
Garter Snakes
Boa Constrictors
Caimans
Space and Astronomy
A Planet from the Early Universe
Saturn's New Moons
Galaxies Divide Sharply Along Color Lines
Technology and Engineering
Drawing Energy out of Wastewater
Reach for the Sky
Supersuits for Superheroes
The Parts of Speech
Countable and Uncountable Nouns
What is a Noun
What is a Preposition?
Transportation
Ready, unplug, drive
Where rivers run uphill
Reach for the Sky
Weather
A Dire Shortage of Water
Arctic Melt
Science loses out when ice caps melt
Add your Article

Beetles

Beetles are one of the most diverse groups of insects. Their order, Coleoptera (meaning "sheathed wing"), has more described species in it than in any other order in the animal kingdom. Forty percent of all described insect species are beetles (about 350,000 species), and new species are regularly discovered. Estimates put the total number of species, described and undescribed, at between 5 and 8 million. This is why when J. B. S. Haldane, a Scottish geneticist, was asked what his studies of nature revealed about God, he replied, "An inordinate fondness for beetles". Variety: Beetles entered the fossil record during the Lower Permian, about 265 million years ago. The large number of beetle species poses special problems for classification, with some families consisting of thousands of species and needing further division into subfamilies and tribes. Anatomy: The general anatomy of beetles is quite uniform, though specific organs and appendages may vary greatly in appearance and function between the many families in the order. Beetle bodies are divided into three sections: the head, the thorax, and the abdomen. Like all insects, beetles are segmented organisms, and all three of the major sections of the body may themselves be composed of several further segments, although these are not always readily discernable. Armor: Beetles are generally characterised by a particularly hard exoskeleton and hard forewings (elytra). The beetle's exoskeleton is made up of numerous plates called sclerites, separated by thin sutures. This design creates the armoured defences of the beetle while maintaining flexibility. The elytra are not used for flight, but tend to cover the hind part of the body and protect the second pair of wings (alae). Elytra must generally be raised in order to move the hind flight wings. A beetle's flight wings are crossed with veins and, after landing, are folded, often along these veins, and stored below the elytra. In some cases the ability to fly has been lost, most notably in the ground beetles (family Carabidae) and the true weevils (family Curculionidae), but also in some desert and cave-dwelling species of other families. Shape shifters: Beetles are endopterygotes with complete metamorphosis.The larva of a beetle is called a grub, and often represents the principal feeding stage of the life-cycle. Larvae tend to feed voraciously once they emerge from their eggs. Some feed externally on plants, such as those of certain leaf beetles and lady bird beetles, while others feed within their food sources. The larval period varies between species but can be as long as several years. All beetle larvae go through several instars, which are the developmental stages between each moult. In many species the larvae simply increase in size with each successive instar. As with all endopterygotes insects, beetle larvae pupate for a period of time, and from the pupa emerges a fully formed, sexually mature adult beetle, or imago. Adults have an extremely variable lifespan, from weeks to years, depending on the species. Many places for Beetles to live: Beetles can be found in almost all habitats, but are not known to occur in the sea or in the polar regions. They impact the ecosystem in several ways. Damage: On the one hand, they feed on plants and fungi, breaking down animal and plant debris, and eating other invertebrates. On the other hand they are prey of various animals including birds and mammals. Certain species are agricultural pests, such as the the red flour beetle Tribolium castaneum, the Colorado potato beetle Leptinotarsa decemlineata, or the mungbean beetle Callosobruchus maculatus Fabr. while others are important controls of agricultural pests. For example, lady beetles (family Coccinellidae) consume aphids, fruit flies, thrips, and other plant-sucking insects that damage crops. Defense: Beetles and their larvae have a variety of strategies to avoid being eaten, for example using camouflage to avoid being spotted by predators. These include the leaf beetles (family Chysomelidae) that have a green colouring very similar to their habitat on tree leaves. More complex camouflage also occurs, as with some weevils (family Curculionidae), where various coloured scales or hairs cause the beetle to resemble bird dung. Sacred to some: Several species of the dung beetles, most notably Scarabaeus sacer (often referred to as "scarab"), enjoyed a sacred status among the ancient Egyptians, as the creatures were likened to the god Khepri. Some scholars suggest that the people's practice of making mummies was inspired by the brooding process of the beetle.

Beetles
Beetles








Designed and Powered by HBJamaica.com™