Sentences with phrase «black black widow»

Not exact matches

Black widows have a cocktail of neurotoxins that enhance the effect of its main component a lpha - latrotoxin.

Pain and symptoms begin to subside.Most recover completely within 3 - 5 days.Weakness and occasional spasms can persist for weeks and months, though.Different species of black widows can be found on nearly every continent.But it seldom bites unless threatened or protecting its eggs.

Morphine and barbiturates may be used to ease the increasing pain and convulsions.Though the venom's effect on breathing may make painkillers more dangerous.The only antivenom uses potentially harmful horse proteins, making it a last resort.The black widow's bite is rarely deadly for healthy adults.

With its now iconic black - and - white tiles, it was made to look like the kitchen of his widowed mother, Mary.

Some early black congregations began as benevolent societies, and all of them were concerned for the welfare of the sick, the widowed and the orphaned.

All were dressed in widow's black, village women come on pilgrimage to the Places sanctified by Christ's birth, life and death.

I only wish translators had had similar chutzpah at Luke 18:5 and had placed their more accurate footnote in the text: «so that she [the importunate widow] may not finally come and slap me in the face» — the term is from boxing, more literally, «give a black eye.»

It occurs to me that the king and the black - dressed, stooped widow follow the same liturgy.

She must have been a widow, for she was all in black, stooped from having carried too many jars of water.

Dressed alike in black dress, cape, and bonnet, after the widows Elizabeth had met in Italy, the Sisters opened St. Joseph's Free School in 1810, which educated disadvantaged girls, and soon thereafter began St. Joseph's Academy, with pupils whose parents could afford tuition, enabling the Sisters to subsidize their mission.

Other noteworthy species included the King Eider, Northern Fulmar, American Golden - Plover, Black - headed Gull, Little Gull, Chuck - will's - widow, Sedge Wren, Prothonotary Warbler, Yellow - breasted Chat, Summer Tanager and Blue Grosbeak.

Black widow spiders.

NEW YORK — As the widow of NYPD Officer Joseph Piagentini cried Thursday at a police press conference, PIX11 learned the son of Waverly Jones, the other cop assassinated with Piagentini in 1971, supported the parole of Black Liberation Army radical, Herman Bell.

Although the common name «black widow spider» is most commonly used to refer to the three North American species best known for their dark coloration and red hourglass pattern, it is occasionally also applied to several other members of the Latrodectus (widow spider) genus in which there are 31 recognized species including the Australian red - back, brown widow spider (sometimes called the gray widow), and the red widow spider.

Adult female black widow spiders are shiny black with an hourglass shaped marking on the underside of its abdomen which, although most commonly red, may range in color from white to yellow to various shades of orange and red.

Currently, there are three recognized species of black widow found in North America: The southern black widow (L. mactans), the northern black widow (L. variolus), and the western black widow (L. hesperus).

DINING HABITS In a new book about cannibalism, a zoologist argues that female black widow spiders (Latrodectus mactans shown) don't deserve their bad rap.

Southern black widow spider (Latrodectus mactans) is with its prey house cricket (Acheta domesticus) trapped in spider web.

The evolutionary psychologist, however, might contend that it is better to be safe from a harmless grasshopper than to be sorry from a deadly black widow.

Read previous Zoologger columns: The sharpest mind in the farmyard, Invasion of the crazy incestuous ants, The fish with no stomach for its prey, Well - fed black widows promise safe sex, The butterfly that sleeps its way to safety, How to get elected in a termite democracy, Away in a vermin - infested manger, Child clones shape - shift to escape hunters Weaponised eggs turn predators» stomachs, The hardest bat in the world, Houdini fly inflates head to break walls.

Read previous Zoologger columns: Megamouth, the shark that has to suck it up, The hairy beast with seven fuzzy sexes, Australia's truly glamorous camper, Jet - propelled living fossil with a problem, The sharpest mind in the farmyard, Invasion of the crazy incestuous ants, The fish with no stomach for its prey, Well - fed black widows promise safe sex, The butterfly that sleeps its way to safety, How to get elected in a termite democracy, Away in a vermin - infested manger.

«Insect DNA extracted, sequenced from black widow spider web: Insect DNA remained detectable on spider web for at least 88 days.»

The bright red markings on the back of a female black widow spider is a clear warning to people to stay away — the venom in her bite can be lethal.

Although the calculated mass for that pulsar, called J1614 - 2230, is lower than that of the black widow pulsar, the uncertainty in the measurement is smaller: + / - 0.04 solar masses vs 0.12 solar masses for the black widow pulsar.

Now Marten van Kerkwijk of the University of Toronto, Canada, and his colleagues estimate that the black widow pulsar B1957 +20 (depicted right) is 2.4 solar masses (arxiv.org/abs/1009.5427).

The result is an increase in ticks, brown recluse spiders and black widow spiders, all serious health hazards for both pets and humans, she added.

Jérôme Marie, the first author on the paper, elaborates on this sentiment, writing, «The spider is shy, which means not as aggressive as the black widow.

The black widow spider's telltale red hourglass - shaped mark appears brighter and more contrasting to birds than to insects, finds a new study.

The species that preferred to build its web furthest from the ground — thus visible to birds hunting from above or below — also happens to be the only North American black widow with red marks on its back in addition to its belly, they found.

Next they estimated how the specific red and black hues used by black widows appear to birds compared to how they might be seen by insects such as crickets, beetles and ants, which black widows catch in their sticky webs.

The researchers discovered that black widows» warning colors are more visible to birds than insects.

But how do black widows broadcast their built - in chemical weapons to birds, without blowing their cover with their insect prey?

Read previous Zoologger columns: The only primate that eats its dinner twice, Biofuel powers biggest flying marsupial, Cryo - frog survives deep freeze, Megamouth, the shark that has to suck it up, The hairy beast with seven fuzzy sexes, Australia's truly glamorous camper, Jet - propelled living fossil with a problem, The sharpest mind in the farmyard, Invasion of the crazy incestuous ants, The fish with no stomach for its prey, Well - fed black widows promise safe sex.

Although a house spider's bite is not as painful as the black widow's, Garb and her colleagues were surprised to find that its venom is seething with latrotoxins — 47 in all, they revealed on 16 February in BMC Genomics.

This toxin may have evolved in black widows because they are big enough to build webs capable of ensnaring small lizards and other prey with backbones, Garb suggests.

Even before the recent genome work, researchers had characterized some of the components of black widow venom, identifying two seemingly unique families of proteins: latrotoxins, which act on neurons; and latrodectins, whose role in venom remains unclear.

The notorious black widow spins two very different sorts of webs.

All differ from those known in black widow venom.

(Both are named for the black widow genus, Latrodectus.)

Western black widow males court females by stepping onto their webs and tapping out a rhythm with their legs.

He kept 13 black widows in separate boxes in his lab, and starved them for 2, 7 or 14 days.

The only black widow species that regularly eats its mates is the southern black widow, Latrodectus mactans — though the related Australian redback spider Latrodectus hasselti also does it, with the male somersaulting gently into the female's mouthparts, apparently on purpose.

Among western black widows, in fact, the females go to great lengths to reassure the males that post-coital slaughter is not on the cards.

Black widow spiders or praying mantises munching on their mates make sense somehow — they look a little monstrous to begin with — but did you know that some seahorses are cannibals?

His team have been conducting a long - term study of western black widows in Arizona's state capital, Phoenix.

Black widow spiders get their name from the females» supposed cannibalistic behaviour, but this has been exaggerated.

«Picky male black widow spiders prefer well - fed virgins.»

I tossed a grasshopperinto the web of a black widow spider, assuming the spider woulddispatch it quickly.

New UTSC research shows that male black widow spiders prefer their female mates to be well - fed virgins, revealing a rare example of mate preference by male spiders.

The study focused on Latrodectus Hesperus, a species of black widow native to western North America including parts of Canada.Theseblack widows are not generally cannibalistic but males are much smaller than females, meaning if a female is hungry her drive to feed will be greater than her drive to reproduce.