Spider is an eight legged freak. Their thought can shiver your spine and scare you shockingly. They are venomous and dangerous. Unpredictable and aggressive in nature. But, these creatures are misunderstood very often. Spiders are one of the top 10 most diverse creatures on the planet. They do feed on insects so, they play a vital role in our Eco system by maintaining the insect population.
Today we will debunk some myths about these octo-legged species and know some amazing facts about them.
1. Spider is not from the insect species, instead they are of Arachnid family like Scorpion or Ticks. Insects have 3 section bodies and six legs. But, Arachnids have 2 section bodies and eight legs. So do the Spiders. They are hugely adapted so, they can be found through out the entire planet except Antarctica.
2. There are around 35,000 species of spiders has been identified , in which around 3000 species are only from North America. Scientists still say there are lot more yet to discover.
3. Spiders have strange muscles. They can contract their legs inwards but can not reflex them outside. To do that, they pump water through their legs to move them outwards. This is why you will often see dead spider lying with legs curled inside cause after death there was no water to pump the legs out.
4. They are venomous but, only for their prey. Majority of the spider bites are non fatal to human. But, the Tarantula, Black widow or Brown Recluse Spider bites are deadly. Their venom can cause dizziness, uncontrollable muscle shiver, blurred vision and even coma or death.
5. The silk they produce are actually liquid. It becomes hard in contact with air. Once hardened Their silk become very strong. Almost 50 times more stronger than a steel strand of same diameter. It has been calculated that, if there was a silk having diameter of a pencil then it can stop a Boeing 747 in flight.
6. These silk strands can be of many types like smooth, sticky or stretchy. Spiders can make 7 different types of webs depending on the use of hunting or making home and they can make it in just 60 minutes. They generally make new webs each day.
7. Spiders have 4 sets or 8 eyes, in which 1 set is to see and other sets are to sense light intensity. They can see spectrum and identify UVA or UVB. But, despite of these unique qualities they are near-sided, which means they can’t see far away.
8. They have a small mouth which don’t have any teeth. So, after catching prey they insert chemicals like digestive juice into the victim’s body which liquefies the organs inside. Then the spider just drinks it up.
9. Raft spiders do live in and on water. Their rear section have unique hairs which trap air from atmosphere and make a bubble underwater by which they breath. They prey on marine insects or tadpoles and can walk on water.
10. The biggest spider on the planet is the Goliath Bird Eater, which can grow up-to 11 inches and are tremendously venomous. Whereas the smallest one is the Patu Marplesi. It can be put on a pencil head in 10 numbers.
11. There are huge population of them on the planet that most houses contain at least 30 spiders each. And you are always 10 feet far away from any of them.
12. These creatures can live for around 2 years but, the Tarantula can live up-to 20 years.
13. Despite their venom, Tarantulas have a unique defensive feature also. They are capable of flinging hairs from their legs and abdomen, which are known as Urticating hairs. These hairs can cause skin irritation and pain, even very fatal if stuck in eyes.
14. There are several of them in disguise as ants, nearly 100 species of them. They evolved their body to appear like an ant, even having the same pheromone that ants use to communicate. These adaptation characteristics are to evade predators or to prey on ants.
15. All of them don’t just walk or crawl. Some run real fast, like the Wolf spider can run up-to 2 feet per second. Others have unique mobility like the Jumping Spider can jump 50 times its body length and repeat the process several times in one go. Whereas the Wheel Spider make it’s body like wheel by taking the legs inside and rolls down any inclined surface sideways.
16. All of the spiders are carnivorous, except a species named Bagheera Kiplingi found in Mexico, Costa Rica and Guatemala are Herbivorous. They generally have plant base diet but, in summer they feed on insect and even get cannibals.
17. Spiders do eat more insects than every other insect eaters on the planet combined.
18. Trap door spiders are known as living fossils, as some fossils ageing 300million years have similarities with this type of spider.
19. Centuries ago people use to put spider web on wounds to stop blood loss. Recently Scientists found that spider webs contain Vitamin-k, which is a blood coagulant and very effective to stop bleeding.
20. They generally do live alone but, few species tends to live in group known as Clutter or Cluster. Almost thousands of them make their colony and build webs in group efforts. Such massive webs has been reported to be as long as 25 feet in length and 8 feet wide. Tetragnatha Guatemalensis (long Jawed Spider) and Larinioides Sclopetarius (Bridge Spider) are two types of colonial spider that make such gigantic webs that can catch prey several times their own size.