It is not entirely irrational. Fear of common house spiders would be irrational but fear of large spiders e.g Tarantulas, or poisonous spiders would have a rational basis.
Yes they do. Common house spiders, poisonous however? No.
All spiders, technically, are poisonous, but I do not believe barn spiders are dangerously poisonous.
No, the Carolina or Southern Writing Spider is harmless to humans. They are common around the house and in gardens and they eat tremendous amounts of insects!
Brown Recluse and Black Widows are the most common poisonous ones, but there are many types of spiders including wolf spiders and garden spiders.
No. While an orange spider might have a fairly painful bite, it's bite is not considered to be venomous or poisonous. Some shockingly common spiders with dangerous and poisonous bites are black widows (known by their reddish hourglass design on their back) or brown recluse spiders.
Two common house spiders are the Daddy long-legs and the Huntsman. There are links below to both spiders.
yes, there are poisonous spiders everywhere.
Probably the most common poisonous animal in national parks is the rattlesnake. Other poisonous animals include spiders, scorpions, and stinging insects.
all spiders are venomous
no
no they am not