Spiders ‘do better’ in cities, study shows

Orb-weaving spiders living in urban areas of Australia grow larger and are better able to reproduce than rural dwellers, a new study has shown.

Female spiders had larger bodies and bigger ovaries in areas of urban development compared with those in places with more vegetation.

Urbanisation can dramatically alter natural landscapes and local climate.

Researchers said their results support the idea that some species may benefit from such habitat changes.

The findings are reported in the journal Plos One.”

Read more from bbcnews.

Spiders Tune In To Web’s Music To Size Up Meals And Mates

"Some of the toughest stuff in nature is spider silk — as strong, ounce for ounce, as nylon. And a silk web makes a great trap for prey, as well as a nice place for a spider to live.

But scientists have learned that spiders can do something else quite extraordinary with their webs. They can “tune” them, like musical instruments.”

Learn more from npr.

This Spider Makes Fake Spiders. But Why?

Scientists returned to the Amazon rainforest in December to collect data on one of their biggest finds of 2012: a spider that uses insect corpses and jungle trash to build big, spider-shaped decoys in its web.

But these Peruvian spiders, presumed to be a new species of Cyclosa, are not the sole sculptors of false arachnids. A second decoy spider lives in the Philippines, on the island of Negros. Finding two spiders that make such similar designs, 11,000 miles apart, has left scientists wondering how the behavior evolved and if the decoys serve as lures for prey or as an anti-predator defense system. The discoveries also suggest there may be even more sculpting arachnids.”

Learn more from WIRED.

Bugs and Spiders Disguised as Poop, Leaves, and Each Other

Insects and spiders wear the best, most elaborate costumes around. Better, even, than Lady Gaga and her cracked-out impersonations of futuristic bubble weirdos.

But the bugs aren’t doing it for entertainment (mostly). Instead, mimicry — the act of resembling another species — evolved to deceive. It serves many purposes, but defense and predation are chief among them. Over time, some bugs have evolved such magnificently deceptive disguises that they’re nearly identical to the real thing.”

To Tumblr, Love Pixel Union