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Spiders

Argentina Tshokwane Offline
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#61

Credits to The Silk Road.

A unique series of photos by Mark Newton showing a Lycosid shutting itself away in it's burrow.

Most Wolf Spiders are wanderers but some build burrows, either open or with a trapdoor, while others may make temporary retreats in vegetation. Arid zone species build turrets to deflect floodwaters during rainy periods, while others use pebbles to plug their burrows. In woodlands, twigs may be used to form a palisade around the top of the burrow. Burrows of some species of wolf spider have a circular trap door that is often left open when the spider is out hunting.The shape and materials used to form burrows and trapdoors may help to distinguish similar-looking species.


*This image is copyright of its original author


*This image is copyright of its original author


*This image is copyright of its original author


*This image is copyright of its original author
‘Like night-watchmen they patrol the dark nights; marching with intent and chasing all those unwanted into the shadows…those that do not run are removed’
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Argentina Tshokwane Offline
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#62

Credits to It's Okay To Be Smart.

Living things have engineered some pretty awesome materials, but I’m not sure anything measures up to spider silk. It’s as strong, as stretchy, and as resilient than even humans’ most advanced creations like Kevlar and steel. So how do these awesome arachnids weave such an incredible substance using nothing but their rear ends? And… what IS this stuff? I went to meet Dr. Cheryl Hayashi, one of the world’s experts in spider silk, to find out.



‘Like night-watchmen they patrol the dark nights; marching with intent and chasing all those unwanted into the shadows…those that do not run are removed’
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Argentina Tshokwane Offline
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#63

Credits to Andrew Mitchell.

Deinopidae sp (Net-Casting Spider)


Poised and ready!

*This image is copyright of its original author
‘Like night-watchmen they patrol the dark nights; marching with intent and chasing all those unwanted into the shadows…those that do not run are removed’
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Argentina Tshokwane Offline
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#64

Farewell, No. 16: scientists left 'miserable' after world's oldest spider dies aged 43:

*This image is copyright of its original author

The world’s oldest known spider has died at the age of 43, outliving its nearest rival by 15 years, Australian scientists have reported.


Affectionately known as “Number 16”, the female Giaus Villosus or trapdoor spider had been under observation in the wild since its birth in 1974.

The arachnid is believed to have survived for so long by sticking to one protected burrow its entire life and expending the minimum of energy.

Previously the oldest known spider was a tarantula in Mexico, which died at the age of 28.

Published the Pacific Conservation Biology Journal, the research is the life’s work of Barbara York Main, now 88, who first set eyes on Number 16 shortly after its birth.

“To our knowledge this is the oldest spider ever recorded and her significant life has allowed us to further investigate the trapdoor spider’s behaviour and popular dynamics,” said Leanda Mason, a student of Professor Main’s and the study’s lead author.

“Through Barbara’s detailed research, we were able to determine that the extensive life span of the trapdoor spider is due to their life-history traits, including how they live in uncleared, native bushland, their sedentary nature and low metabolisms.”

While trapdoor spiders are poisonous, it is the males, who leave their burrows to find a mate, which are usually encountered by humans.

A typical danger in Australia is homeowners finding what they believe to be dead spiders in their swimming pools, which can then rear up and attack when removed.

The trapdoor species typically take five to seven years to mature and will then invest their energies in a single burrow, with the females rarely venturing more than a few metres away from their place of birth.

Ms Mason said of the Number 16’s death: “We’re really miserable about it.

“We were hoping she could have made it to 50 years old.”
‘Like night-watchmen they patrol the dark nights; marching with intent and chasing all those unwanted into the shadows…those that do not run are removed’
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Italy Ngala Offline
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#65

From Gorongosa National Park, Mozambique:

Photo and information credits: Piotr Naskrecki
"One of Gorongosa's most spectacular arachnids, the Kite spider (Gasteracantha falcicornis). This year they seem to be particularly abundant."

*This image is copyright of its original author
"Man still bears in his bodily frame the indelible stamp of his lowly origin." C. Darwin
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