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Most Spiders have a venomous bite. Each species has different toxins within the venoms. Some of those toxins are dangerous or fatal to man but not all.
The bite of a black widow, for example, can cause heavy abdominal cramping and intense pain. The brown recluse spider bite causes a puss filled lesion, where the victim risks amputation or infection antivenin is not administered quickly. The hobo spider bite is believed to have similar necrotic effects.
Venom is produced by specialized glands in the spider's body. In most cases, spiders use the chemical properties of the venom to liquefy the insides of their prey, making them easier to digest.
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∙ 13y ago
Wiki User
∙ 12y agoNone.
The term "poisonous" refers to a substance that is ingested, usually by drinking or eating.
However, there are numerous venomous creatures in Australia. They include:
- the male platypus, which delivers its venom via a spur in its ankle
- various snakes such as the Inland Taipan, Coastal Taipan, Tiger Snake, Brown snake and Red-bellied black snake
- Spiders such as the Sydney Funnel web spider and the Redback spider
- Marine creatures such as the Blue-ringed octopus, Box jellyfish, Stonefish and Irukandji
Wiki User
∙ 15y agoapprox. 2 billion species are poisonous in N. America
Wiki User
∙ 13y agoThe exact number of poisonus animals is presently unknow since we are constently discovering new ones
Wiki User
∙ 12y ago2,900 species of poisonous snakes.
Wiki User
∙ 13y agonone du
No. There are three.
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Were barn spiders ever poisonous?
All spiders, technically, are poisonous, but I do not believe barn spiders are dangerously poisonous.
What are the types of spiders in Tennessee?
Brown Recluse and Black Widows are the most common poisonous ones, but there are many types of spiders including wolf spiders and garden spiders.
Why does Australia have many poisonous snakes and spiders?
Because the climate happens to be idea for their species. Most poisonous species of anything has to have a warm to hot climate.
How many spiders are there in the world?
lol dray it would take forever to smash all the poor innocent spiders but who cares how many spiders there are in the world
What two spiders native to NM are considered poisonous?
One of the two spiders that are native to NM and is considered poisonous is the widow spider. Also, the recluse spider is another NM spider that is poisonous.
Were barn spiders ever poisonous?
All spiders, technically, are poisonous, but I do not believe barn spiders are dangerously poisonous.
Are most spiders in the world poisonous?
The Brazilian wandering spider.
How many types yellow backed spidrs are poisonous?
Spiders aren't poisonous, they're venomous.
Do poisonous spiders live in fly creek NY?
yes, there are poisonous spiders everywhere.
Are lycosa spiders poisonous?
all spiders are venomous
What are the types of spiders in Tennessee?
Brown Recluse and Black Widows are the most common poisonous ones, but there are many types of spiders including wolf spiders and garden spiders.
Are neoscona crucifera spiders poisonous?
no
Are many spiders poisonous?
Most spiders, if not all, are poisonous, it's just that the dose-age of it is too minute, and their inability to get through human skin that prevents them being a threat to humans.
Are brown spiders poisonous?
no they am not
Are English spiders poisonous?
No
How do you know when spiders are poisonous?
If a spider bites you and you get sick it is poisonous.
How deadly is the poison spiders produce?
It really depends on the spider. Many Spiders actually aren't deadly or even poisonous to humans.
