collected golden
orb spiders (click to see — arachnophobe warning)... [more]
collected golden
orb spiders (click to see — arachnophobe warning) every day during the rainy season for four years and took them in to a central location where they were milked for their web silk.
Other animals in the park include Central American squirrel monkeys, mantled howler monkeys, both two - toed and three - toed sloths, agoutis, giant anteaters, great curassows, black hawks, spectacled owls, hummingbirds, 220 species of butterflies, golden
orb spiders (who build huge webs), otters and raccoons.
Readers also learn about some extreme builders, like two
orb spiders who traveled to the International Space Station.
The organ of male
orb spiders break apart inside the female after mating, providing the male with an oppportunity to escape before being devoroued by his partner.
«We aren't yet sure if C. darwini is a really neat exception to most
orb spiders, or if we simply don't know enough about what they eat,» Blackledge says.
Ali Dhinojwala of the University of Akron in Ohio used microscopic probes to test beads of glue on
an orb spider's web and found that elasticity was key.
Scientists at the Perelman School of Medicine at the University of Pennsylvania have sequenced the entire genome of the golden
orb spider, one of the most productive of all spiders.
Not exact matches
For example, what math was used to calculate the capability of dragline silk from an
orb weaver
spider that is lighter than cotton, yet ounce for ounce stronger than steel, tougher than kevlar (used in bullet - proof vests), that if the silk were 0.4 inch thick with strands 1.6 inches apart and enlarged the size of a football field, could stop a jumbo jet in flight, that is flying at an average speed of about 600 mph?
(23) Possessing one's own wilderness allows one «to understand and enjoy the miracles of this world,» (24)-- for example, to see in an
orb - weaving
spider on a street lamp post, «a great black and yellow embodiment of the life force.»
And I am glad you are not into the
spider smashing business, I get so upset when I think of garden
orb weavers being killed, yeah I've walked through many a sticky web only to worry where the heck is the
spider, but they are harmless and very very unlikely to bite you, they are scaredy cats!
-LSB-...] It was not long after my dive into the world of
orb weavers that I started taking an even deeper interest in all
spiders.
The golden
orb - weaver
spider from Tanzania spins such strong webs that Tanzanian fishermen use them for fishing.
Exceptionally short - period circadian clock in Cyclosa turbinata: regulation of locomotor and web - building behavior in an
orb - weaving
spider.
In a separate paper, Blackledge has shown that female
orb - web
spiders rely on occasionally capturing exceptionally big animals.
,» page 19 «A golden
orb - weaving
spider,» in the April 20 issue of Biology Letters, details the largest
spider fossil ever discovered.
Few animals are as devoted to their mates as the male
orb - weaving
spider.
Others include species of
orb weaver, especially those from the genus Celaenia, says
spider expert Robert Whyte.
They took silk from a native
orb - web
spider.
But the velvet
spider genome, together with that of the
orb weaver and the house
spider, has exposed an unexpected variety of silk genes — «a lot more than we thought,» Coddington says.
One of the
orb weaver's silk genes is even expressed in the
spider's venom gland.
Contrary to earlier studies, the analyses divided
orb weavers, the many
spider species that make the classic spiral webs and cobwebs, into two groupings and put them on very different branches of the tree.
The typical
orb weaving
spider has many silk glands divided into seven types; each type of gland produces a specific mixture of proteins, which forms a distinctive type of silk when it is extruded through one of the
spider's spinnerets.
Researchers have sequenced full genomes of three species — the golden
orb - weaver, the African social velvet
spider, and the common house
spider — and have done more limited genetic and protein studies on many others.
They have also looked for the activity of similar genes in the silk glands and other tissues of cobweb - weaving
spiders, a subset of
orb weavers that build 3D webs instead of flat ones.
Orb weavers that produce fuzzy, sticky fibers called cribellate silk ended up in a part of the tree that includes many spiders that don't make webs at all, whereas orb weavers that make a viscid silk are on their own bran
Orb weavers that produce fuzzy, sticky fibers called cribellate silk ended up in a part of the tree that includes many
spiders that don't make webs at all, whereas
orb weavers that make a viscid silk are on their own bran
orb weavers that make a viscid silk are on their own branch.
The
orb - web
spider Nephilengys malabarensis is into rough sex.
For instance, the larva of the giant swallowtail butterfly (Papilio cresphontes)(left) masquerades as a bird dropping, as does the
orb web
spider (Cyclosa ginnaga).
A good first impression can save your life — that is, if you're a male
orb - web
spider.
Jones studies social behavior in the
orb weaver
spiders that his undergraduate students collect near their East Tennessee State University campus.
Researchers have found that the golden
orb - web
spider (Nephila antipodiana), a species common in tropical Asia, coats its silk with a toxic substance to deter hungry ants.
Looking up, he saw a huge golden
orb web
spider tethered to the overhead boughs.
Among the more than 25 other species in the exhibit are a goliath bird - eating tarantula and an
orb - weaving
spider with graceful tortoiseshell limbs.
Orb - weaver
spiders build webs to catch prey.
The authors of the present study investigated how sexual cannibalism may promote male choosiness by pairing captured virgin male and female
orb - weaving
spiders randomly in the laboratory and observing which sex was more selective and which mates were selected.
«Male
orb - weaving
spiders cannibalized by females may be choosy about mating: In sex role reversal, males often pick their mates, prizing likely fertile females.»
Using a microscope and a nanoscale positioning system, a team of scientists artificially stretched and compressed a single - capture thread from a golden
orb weaving
spider.
In the
orb web
spider Araneus diadematus (the common European garden
spider), the β - sheets are made up of a series of highly conserved poly - Ala repeats and are stacked up, thereby forming the protein crystals; these are embedded in a matrix of loosely arranged glycine - rich amino acids [26].
Female preference for a mate in
orb - web
spiders is often measured by latency to move onto the mating thread (as an indication of willingness to mate) and copula duration (under female control, with the potential to limit the amount of sperm males can transfer)[3], [11].
Here, we provide the first comprehensive description of male courtship behaviour and vibrations generated in the web by the
orb - web
spider, Argiope keyserlingi — a recognised model species.
For example, one of the first pieces of evidence for cryptic female choice comes from an
orb - web
spider [3], [4].
The missing sector
orb weaver, however, is more of an indoors
spider.
Two of the most common are the missing sector
orb weaver (Zygiella x-notata) and the lace webbed
spider (Amaurobius sp.).
Nephila clavipes
spiders (Araneae: Nephilidae) keep track of captured prey counts: Testing for a sense of numerosity in an
orb - weaver.
The picture shows the effects on the organization skills of an
orb - weaving
spider, and some caffeine addicts describe a similar sense of scatteredness.
Popular examples include the Golden
Orb, Redback and the Funnel Web
spiders.
In the Parrish Perspectives exhibition «Joe Zucker: Life & Times of an
Orb Weaver,» the Parrish Art Museum is showing drawings, prints and constructed paintings of
spiders and their webs, imagery a bit more mainstream than one might imagine at first glance.
Caerostris darwini is a newly described
orb - weaving
spider from Madagascar.