Are bugs animals? – The first thing, most of the insects are mammals, just like you and me. Insects also share with all the animals on earth the kingdom Animalia.
But there is a belief that humans are so very different from us. Long ago, the insects diverged from primates and other animals. Scientists estimated over 500 million years ago, there existed the last common ancestor of humans and insects.
What is Phylogeny?
Phylogeny determines what is what. What is an animal? What is a plant? Where are we drawing the lines? Those decisions can be very complicated. But taxonomy is our strongest representation of the earth’s life history.
On Earth, all living organisms share a common ancestor. This history is examined through phylogeny. In other words,understanding the interspecies relationships allows us to better appreciate the evolution and life itself.
According to the history of its evolution, all life on earth fall into the taxonomy. Above all,the definitions are there to classify groups and subgroups . Such groupings depends on biology, age, behavior,and distribution.
The most commonly used groupings are the domain, the kingdom, the phylum, the class, the order, the family, the genus, and the species. Plantae is the herbal realm. Fungi also hold a realm of their own.
In addition, there are one or two more kingdoms, containing bacteria, protozoa, and organisms. These species are so different; Prokaryota, they occupy a different domain. In other words, these classifications shows just how complex this evolutionary history is!
What are Arthropods?
Insects are at the Animalia kingdom and diverge from us after this. The subsequent rank is phylum. Insects are Arthropods which means joined foot. There are also millipedes, scorpions, spiders, and crabs as well in this phylum.
All arthropods have general features. They are jointed legs, segmented bodies, and an exoskeleton. However, the arthropods are highly diverse.
They inhabit all terrestrial environments. We account for 84 percent of all recognized species of animals. Most of those species are insects.
Entomologists believe most of the arthropods are still undiscovered! Estimates range to as high as 10 million species are still out there. We still have a lot to learn from insects.
The diversity among animals is incomparable. Scientifically, they make up 75 percent of animal species! Although they may seem strange out there, insects are actually much more “normal” than we are!
Instead, human beings are vertebrates. The phylum Chordata includes vertebrates, along with mammals, insects, worms and much more.
How do you define an insect?
Insects belong to class Insecta. All of the animals share common traits in this class. The back, thorax, and abdomen have a body separated into three parts.
They also have a pair of antennas and most have wings. This distinguishes the other arthropods from these. These have usually more legs, 2 parts of the body, and don’t have wings.
What makes insects unique?
Insects are distinct in some interesting ways, from arthropods. The sheer diversity and insect numbers contribute to some very unusual adaptations. We have far more complex life cycles than most mammals.
Most begin as larvae, which have to undergo metamorphosis to reach adulthood. The reason people think of insects as so different from us is this peculiar cycle.
Insects also have some very odd eating habits. Species like Thai bees and Brazilian Amazon moths will feed on human and other animals! We feed on the protein and salt found within.
There are also a number of insects that feed on blood. While mosquitoes are an obvious example, another blood-sucking insect that feeds on humans is the vampire moth!
Another crazy example of insect adaptation comes from the occasional stick worm. This insect is sometimes consumed by birds that are fortunate enough to see camouflage through the bugs.
Though for the poor bug this may sound like the end of the line, it can be a disguised blessing. This insect’s eggs can survive the digestive tract of the birds. So the next generation of stick bugs can travel largely.
Most insects are plant feeders. So, people are often forced to compete with those insects when the plants are of agricultural value.
Insect species are threatened by adverse environment, predators and pests, and infections. Bacterial, and fungal pathogens, as well as many other factors that function to sustain the insect populations.
Agricultural methods encourage the planting of ever-larger areas into single crops, providing food resources. The method has removed some of these regulating factors and increased the rate of population growth of insects.
This increases the probability of some insect pests having major infestations. Many natural forests, which form similar giant monocultures, appear to have always been the subject of periodic destructive insect outbreaks.
Role in Nature
Insects play many key roles in nature. They help in the decomposition of organic matter and in soil formation of bacteria, fungi, and other organisms.
For example, the decay of carrion caused mainly by bacteria is intensified by the flesh flies and blowflies maggots. Such larvae’s movements, which spread and absorb bacteria, are accompanied by those of moths and beetles. Insects and flowers jointly evolved. Several plants rely on pollinating insects.
Insects are perhaps the most eminently successful group of all animals and adaptable also. With about 1 million species described, they dominate the present-day fauna.
It comprises approximately three-fourths of all animal species described. Entomologists believe the total number of species of live insects could reach as high as 5 million to 10 million.
The orders possess the largest number of species : Coleoptera (beetles), Lepidoptera (butterflies and moths), Hymenoptera (ants, bees, wasps), and Diptera (true flies).
1.What are the insects classified?
Insects belong to the Insecta or Hexapoda class and Arthropoda phylum’s largest class and the largest phyla itself. Insects have segmented bodies, legs joined, and skeletons (exoskeletons) outside.
2.Is a mosquito an animal or an insect?
Mosquito is also a part of the animal kingdom. Some view them as the world’s most dangerous creature because of the diseases they transmit to humans and wildlife.
3.How are animals categorized?
Researchers classify the animals according to the Linnaeus system. They share similar physical characteristics. They begin with the Animalia of the kingdom and proceed through phyla, classes, orders, families, genera, and species.
4.How many classes of insects are there?
Standard morphology-based systematics usually gave the Hexapoda the rank of the superclass, and described four classes within it: insects (Ectognatha), springtails (Collembola), Protura, and Diplura, the latter grouped together as the Entognatha on the basis of repressed mouth.
5.What are insects made of?
Insects all have a rough outer cover made from something called chitin. And their bodies consist of three parts: heart, thorax, and abdomen. Insects have a pair of antennae also. They all have six legs attached to the thorax, whereas arachnids possess eight wings.