When their nest is invaded, they rupture their own abdomens, releasing a sticky, bright yellow fluid laced with toxins on their attackers. Similar to honey bees that die after stinging, the exploded ants do not survive, but their sacrifice can help save the colony.
A worker can explode suicidally and aggressively as an ultimate act of defense, an ability it has in common with several other species in this genus and a few other insects. The ant has an enormously enlarged mandibular (jaw) gland, many times the size of a normal ant, which produces defense adhesive secretions.
Then, if the would-be attacker—a much larger weaver ant, say—doesn't back off, one or more tiny ants bite down on it, angle their backsides in close, and flex so hard that their abdomens burst at the seams. By tearing themselves apart, the ants sacrifice themselves to protect the rest of the colony.
Earlier this month, a group of scientists described a newly discovered ant species, Colobopsis explodens, in the journal ZooKeys. As the name suggests, the worker ants of the species, which is found in south-east Asia, are known to explode when attacked, releasing sticky, toxic fluid from their abdomens.
A non-adaptive phenomenon called an ant mill, or “death spiral”. The ants have a hard time breaking out of this loop and often die in the end.
It would take several hundred ants to pick up each pound of the person. So you'd need to know the person's weight and then multiply that by 200 to 300 ants.
Over 15 years ago, researchers found that insects, and fruit flies in particular, feel something akin to acute pain called “nociception.” When they encounter extreme heat, cold or physically harmful stimuli, they react, much in the same way humans react to pain.
Even the bullet ant doesn't kill unless you're allergic. Its venom causes pain, but not lethality: getting stung by a few hundred bullet ants is actually a coming-of-age ritual of the Sateré-Mawé tribe in the Amazon. The initiates survive it, but I doubt they enjoy it!
Executioner Wasp
This newly discovered wasp was likely named after its sting. Since it was a new species that hadn't been analyzed by Justin Schmidt, a wildlife expert named Coyote Peterson followed in Schmidt's footsteps to seek out the species. He was stung by it and described it as far worse than the Bullet Ant.
It makes sense that you want to wipe them out the moment you spot them in your house. However, this might be the beginning of your troubles. Killing ants will, definitely, attract more ants because the dead ants release pheromones that attract or rather alert, nearby ants.
Ants don't have complex emotions such as love, anger, or empathy, but they do approach things they find pleasant and avoid the unpleasant. They can smell with their antennae, and so follow trails, find food and recognise their own colony.
An ant mill is an observed phenomenon in which a group of army ants are separated from the main foraging party, lose the pheromone track and begin to follow one another, forming a continuously rotating circle, commonly known as a "death spiral" because the ants might eventually die of exhaustion.
As far as entomologists are concerned, insects do not have pain receptors the way vertebrates do. They don't feel 'pain,' but may feel irritation and probably can sense if they are damaged. Even so, they certainly cannot suffer because they don't have emotions.
In an experiment a powerful radioactive source (sufficient to kill humans in short order) was left by a nest of common European black ants. After a long period (some weeks or months I think) most of the surrounding plant matter had died but the ants were seemingly completely unaffected.
Bug bombs or bug foggers are pest control products you use to get rid of pests like bed bugs, fleas, and ants at home. These are typically sold in aerosol cans. To use, press a button on an aerosol can to let out a mist of pesticides in a home or any enclosed areas.
Bull ants are found throughout Australia.
For humans and other vertebrates, the tarantula hawk has one of the most painful stings on the planet. American entomologist Justin Schmidt created the sting pain index, with the help of variably willing or unwitting test subjects.
The most effective way to kill fire ants is to use the two-step method: baiting and mound drench. The first step involves using bait to kill the queen and other worker ants deep in the colony. The second step is to use insecticide for targeted treatments on the mounds.
The short answer is ants have something similar to blood, but scientists call it “haemolymph”. It is yellowish or greenish.
While these insects don't literally scream, they actually produce sounds. Scientifically speaking, there are several species of ants that normally stridulate. These are shrill and repetitive sounds that are produced when the ants strike their body parts on certain areas of their colonies.
In fact, there's mounting evidence that insects can experience a remarkable range of feelings. They can be literally buzzing with delight at pleasant surprises, or sink into depression when bad things happen that are out of their control.
Ants play an important role in the environment. Ants turn and aerate the soil, allowing water and oxygen to reach plant roots. Ants take seeds down into their tunnel to eat the nutritious elaiosomes that are part of the seed. These seeds often sprout and grow new plants (seed dispersal).
How much weight can an ant carry? According to different estimates, ants can carry 10 - 50 times their body weight, or maybe even more!