Animals

Spider

Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs able to inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms.Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every habitat with the exceptions of air and sea colonization. As of November 2015, at least 45,700 spider species, and 113 families have been recorded by taxonomists.However, there has been dissension within the scientific community as to how all these families should be classified, as evidenced by the over 20 different classifications that have been proposed since 1900,More info:wiki

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#10   Spiders Evolved Spare Legs,More info:nationalgeographic

Scientists may have uncovered why spiders are so creepy-crawly—they have more legs than they need, a new study says.

After collecting thousands of female spiders in the wild, scientists found that more than 10 percent of the arachnids were missing at least one of their eight legs.

#9       Video of huge spider dragging opossum is nightmarish: ‘We couldn’t really believe what we were seeing,More info:usatoday

 

#8     How to Scrape the Web using Python with ScraPy Spiders,More info:towardsdatascience

#7     Australians rescued a giant spider. The rest of the world wonders why,More info:mercurynews

 

#6     Deadly redback spiders on the rise in the UAE – and they are biting,More info:thenational

Potentially lethal redback spiders are on the rise in the UAE — as they travel into the country inside imported plants and fruit and even people’s luggage.

The venomous spider is more commonly found in Australia and Asia, but there has been a recent surge of sightings in the UAE.

While there have been no deaths attributed to the venomous spider in the UAE, a leading doctor has urged people who think they might have been bitten by a redback to seek out treatment.

One person who believes they may have been the victim of a redback bite is Lee Tunnicliffe of Dubai.

#5     Spider venom strikes a blow against childhood epilepsy,More info:medicalxpress

 

#4     Watch a Monster Spider Abduct a Cricket in a Horrifying Sneak Attack,More info:livescience

 

#3     Huntsman spider,More info:wikipedia

 

#2     Researchers insert a spider web gene into the silkworm,More info:arstechnica

Spider silk is a bit of a dream material, stronger than steel by some measures yet incredibly light and flexible. Obtaining spider silk, however, is a bit of a nightmare, as most spider species are both extremely territorial and prone to cannibalism. While we have managed to identify the genes that are needed to produce silk, inserting those into other species hasn’t worked out especially well, since silk formation depends on fairly precise mixtures of several proteins, as well as how the spider extrudes the fiber.

A Chinese group is now reporting some progress in overcoming at least some of these challenges. Their trick was to insert the genes into a domesticated species that already makes something like spider silk—specifically, the species that gave us the term silk. The new bit of genetic engineering has resulted in a silkworm that produces a hybrid silkworm/spider material that’s not as tough but is a bit stretchier than native spider silk.

#1     Spiders eat twice as much animal prey as humans do in a year,More info:newscientist

 

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