While the sight of a spider may cause some people to shudder, they are a vital part of nature. Hostile reactions are harming conservation efforts – especially when people kill spiders unnecessarily. Populations of many invertebrate species, including certain spiders, are highly vulnerable.
It turns out, there's no reason to feel embarrassed or ashamed about your fear of spiders. Scientists have discovered that spiders are so scary, even other spiders are scared of them.
We found that perceived fear and disgust of spiders were triggered predominantly by enlarged chelicerae, enlarged abdomen, and the presence of body hair. Longer legs were associated with perceived fear as well; however, the presence of two eyes did not produce any statistical significance in terms of fear.
Some researchers think that we inherit snake and spider fear through our biology. The reasoning is that snakes and spiders were some of our (and by “our,” I mean mammals) most ancient predators, and over the centuries, we have evolved a natural fear of these animals. Some research supports this idea.
Spiders are not out to get you and actually prefer to avoid humans; we are much more dangerous to them than vice versa. Bites from spiders are extremely rare. Although there are a few medically important species like widow spiders and recluses, even their bites are uncommon and rarely cause serious issues.
No, dead spiders won't attract other spiders. At least not directly, but it might indirectly as their carcass can turn into food for other insects and attract other spiders to eat said insects.
The vast majority of spiders are harmless and serve a critical purpose: controlling insect populations that could otherwise devastate crops. Without spiders to eat pests harmful to agriculture, it's thought that our food supply would be put at risk.
Myth Number 2: Spiders want to bite you
“Spiders really have no interest in biting people, unlike a lot of other arthropods like mosquitos and ticks and mites that feed on human blood — that's part of their lifestyle, that's what they do. Spiders [on the other hand] do not feed on humans.
While the theory is unproven, it is likely that spiders can detect human fear. However, there are only few studies about this topic and it is not yet known for certain. Different animals have sensory organs that are able to identify different stimuli.
They may give you the creeps, but spiders are really just more of a nuisance than a health hazard. In fact, having a few spiders around your home can be advantageous as they will help to keep away harmful pests and disease-carrying insects like ticks, fleas, and cockroaches.
These eight-legged creatures hate the smell of citrus fruits such as lemons and oranges. They also don't like peppermint oils, tea tree oils, eucalyptus, and vinegar. Using any of these around your home will keep spiders away.
"We conclude that fear of snakes and spiders is of evolutionary origin. Similar to primates, mechanisms in our brains enable us to identify objects as 'spider' or 'snake' and to react to them very fast. This obviously inherited stress reaction in turn predisposes us to learn these animals as dangerous or disgusting.
But Matt Bertone, an entomologist at North Carolina State University, says spiders are an important part of our indoor ecosystem and rarely a danger to humans — so it's best to just leave them alone.
Myth: Spiders in the home are a danger to children and pets.
Fact: House spiders prey on insects and other small creatures. They are not bloodsuckers, and have no reason to bite a human or any other animal too large for them to eat.
Sometimes when we get too close or disturb them, they treat us like they would treat any predator. Many spiders have threat displays intended to scare off predators, such as rearing up or lunging. Biting in self-defence is another strategy that spiders can use when they are afraid for their lives.
They don't feel 'pain,' but may feel irritation and probably can sense if they are damaged.
Arachnids from all over the world could be at risk of extinction because of the exotic pet trade. Researchers have warned that spiders, scorpions and their relatives are at risk from uncontrolled collecting from the wild, and that some species might go extinct before they are scientifically described.
Spiders probably evolved about 400 million years ago from thick-waisted arachnid ancestors that were not long emerged from life in water. The first definite spiders, thin-waisted arachnids with abdominal segmentation and silk producing spinnerets, are known from fossils like Attercopus fimbriungus.
Web-spinning spiders obviously remain motionless while they are waiting for something to land in their web. Moving around wastes energy and draws attention to the spider, which makes it more likely to be eaten by birds, and makes flies less likely to get caught in the web.
Doing your household chores keeps spiders away. It's simple – just like they love dark areas, they also like cluttered and dirty places. Thus, maintaining a clean home will discourage spiders or other insects from inhabiting your bed or house.
While it is common to dislike or fear spiders, they shouldn't be killed when found in your home. One benefit to having spiders in your home is their tendency to capture nuisance pests and disease-carrying insects such as mosquitoes. Rather than killing any spiders you find, make an effort to release them outdoors.
When spiders die, their tiny legs curl up tight against their body, because spiders don't use muscles to extend their legs. Instead, they have hydraulic legs!