Common house flies are attracted to decaying organic filth such as feces and rotting meat, whereas fruit flies seek sugary substances and feed more commonly on overripe fruit, spilled soda, and alcohol.
Because house flies live on a liquid diet (see #6), things move rather quickly through their digestive tracts. Nearly every time a house fly lands, it defecates. So in addition to vomiting on anything it thinks might make a tasty meal, the house fly almost always does poop where it eats.
The Fly has a very soft, fleshy, spongelike mouth and when it lands on you and touches your skin, it won't bite, it will suck up secretions on the skin. It is interested in sweat, proteins, carbohydrates, salts, sugars and other chemicals and pieces of dead skin that keep flaking off.
Researchers studying fruit flies have discovered the insects have a "surprising mental capacity" previously unrecognised. Flies appear to "think" before they act and, like humans, take longer to make trickier decisions, a study has found.
Insects are said to have small brains, which might even be microscopic in nature. The fly brain is very simple in comparison to a human brain (which is capable of executing detailed and intricate thoughts). The brain of this insect is said to contain around 100,000 neurons.
Most flies sleep in the night; however, they sometimes also take short naps during the daytime. Rest is a vital part of the daily life of any living thing. Even the smallest brains need sleep to work properly.
Although the presence of these primitives suggests that the flies might be reacting to the stimulus based on some kind of emotion, the researchers are quick to point out that this new information does not prove—nor did it set out to establish—that flies can experience fear, or happiness, or anger, or any other feelings ...
The flies, they found, receive pain messages via sensory neurons in their ventral nerve cord, the insect equivalent of a spinal cord. Along this nerve cord are inhibitory neurons that act as gatekeepers, allowing pain signals through or blocking them based on context.
Flies rub their limbs together to clean them. This may seem counterintuitive given these insects' seemingly insatiable lust for filth and grime, but grooming is actually one of their primary activities.
Insects and fish don't experience REM sleep, but some birds and all mammals do. Reptiles might also experience REM, and some scientists argue that our mammalian dreaming might be a holdover from our reptilian brains. The purpose of dreaming remains a mystery, but infants (of all species) dream more often.
Answer 2: Insects don't have blood exactly like ours, but theirs does some of the same jobs, transporting things throughout their bodies. Their blood moves nutrients, waste products, and hormones.
A fly's heart certainly doesn't look much like a human's. It's essentially a tube which stretches along their abdomen. However, although the fly's heart seems very simple, it has many of the same components as a human heart.
Even tiny insects have brains, though the insect brain does not play as important a role as human brains do. In fact, an insect can live for several days without a head, assuming it does not lose a lethal amount of hemolymph, the insect equivalent of blood, upon decapitation.
This may come as a surprise to you, but most flies don't have the ability to hear. However, certain parasitic flies have a hearing system that is so exact in pinpointing a sound's origin that it rivals the exceptional ears of owls and cats.
But why does the housefly love you and your home? Houseflies LOVE the scent of food, garbage, feces, and other smelly things like your pet's food bowl. They're also attracted to your body if you have a layer of natural oils and salt or dead skin cells built up.
A similar experiment printed in Current Biology in 2015 concluded: “Our results suggest that flies' responses to repetitive visual threat stimuli express an internal state … analogous to fear in mammals.” More remarkable than the screaming was the apparent distress of another fly at window pane.
Again, probably not. “The most common gases in insect farts are hydrogen and methane, which are odorless,” Youngsteadt says. “Some insects may produce gases that would stink, but there wouldn't be much to smell, given the tiny volumes of gas that we're talking about.”
The short answer is yes, insects sleep. Like all animals with a central nervous system, their bodies require time to rest and restore. But not all bugs sleep the same. An insect's circadian rhythm – or the regular cycle of awake and asleep time – changes based on when it needs to eat.
It's the first evidence that the insects rely on vibrations to gain new buddies, new research suggests. When it comes to finding new friends, this caterpillar busts its butt—literally.
Insects get oxygen from a complex system of air tubes that connect to the outside through openings called spiracles. So instead of carrying oxygen, their blood carries nutrients from one part of the body to another. They do bleed when they are hurt, and their blood can clot so they can recover from minor wounds.