Is the spider on my ceiling watching me at night?

spider_web

Ever wondered if spiders can see in the dark? Did you know there is thought to be over 8000 species of spiders in Australia that we don’t even know about yet?


screen-shot-2018-03-16-at-8-47-25-amDr Lizzy Lowe, postdoctoral researcher in the Department of Biological Science, takes us through some of the most common questions we have about our eight-legged friends.

Are daddy long legs really the most venomous spiders in the world?

These spiders aren’t actually that venomous, and even if they were, they can’t get their little fangs into us anyway.

 Are huntsman spiders dangerous?

All spiders have venom so all spiders are dangerous on some level and they can bite you. But you’ve seen how fast these guys are – they really don’t want to be anywhere near you. If you caught a huntsman and held onto it, they’d probably bite you – but they really don’t want to, they want to get as far away from you as possible.

Why don’t spiders stick to their own webs?

A spider doesn’t stick to its own web because it’s got these tiny little hooks on the end of its feet, so it’s only that very end of the foot that’s connecting onto the web at each time. They actually have to put the stickiness on their web every day to make sure they can still catch their prey.

What’s the best way to capture a spider that’s in my house?

If you can’t deal with the idea of a spider living in your house, the best thing you can do is to grab a cup, put it over the top, slide a piece of paper underneath and take it outside. This is a much better technique than using pesticides because then you are introducing all sorts of chemicals into your house that you don’t really need to be there. The spider is quite happy to live outside and will do a good job of eating pests outside as well.

Does Australia have the world’s deadliest spiders?

We do have a couple of very deadly spiders. We’ve got Redbacks and Funnel Webs. And they’re actually the only two spiders in Australia that will do you any harm. The most venomous spider is in Brazil – it’s called the Brazilian Wandering Spider and thankfully we don’t have that here.

How many species of spiders does Australia have and which are the most common?

There are over 4000 types of spiders we know about in Australia, but there is thought to be over 8000 additional ones that we don’t know about. So there are so many spiders that haven’t even been identified yet. The ones that live in our back gardens in Sydney include the St. Andrew’s Cross, Golden Orb Weaving Spiders and Leaf-curling Spiders. All of these spiders are great spiders to have a round!

Do spiders make good pets?

Spiders make wonderful pets! I know a lot of people who keep tarantulas and they’re really, really fascinating. But I think they are just wonderful things to have around. Have you ever sat down and watched a spider build its big beautiful web? They use so much concentration and it’s so intricate – it’s really a fascinating thing to watch. So, I love having them around, just to see what they’re up to.

Can spiders see in the dark?

There are lots of spiders that are nocturnal – but some of them don’t even need to see in the dark and that’s because they’ve got these webs. They sit in the middle of their web and they’ve got a leg on each of the spindles. As soon as a prey item lands in the web, it makes a vibration, and it’s actually that vibration that the spider is ‘seeing’. As soon as they feel that, they can run off and get the prey. They can actually work out how big that prey is, and what type it is from the type of vibration. So, spiders can see a little bit at night, but they’re really focusing on the vibrations that surround them.


 

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  1. Fascinating facts and interesting!
    Now I know some spiders we have seen in the hills of Mundaring and Kalamunda
    did not have a name.
    My brother bitten reapearedly
    By a hunstman Spider,a large
    One whilst cutting in a tree!

  2. Love them! I have Golden Orb Weavers and St Andrew’s Cross spiders all over my yard – while it’s a bit off-putting to walk into their webs first thing in the morning, I’m endlessly fascinated with their architectural skills! If you get out early enough in the bush (I live near the Field of Mars Reserve) you can see masses of webs shining gold in the morning sun – spectacular.

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