Venomous spiders #8 - Loxosceles reclusa

Scientific Classification:

Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Arachnida
Order:	Araneae
Family:	Sicariidae
Genus:	Loxosceles
Specie:	L. Reclusa

Common Name: Brown Recluse spider, Violin spider.

That's it, this coin sized spider can do a great damage, never underestimate those little things. Those spiders can be found everywhere seems like a plague, many people label they as the most venomous spider in the world but they're wrong, it just bites a lot bites which make a very ugly necrosis (i found some pictures showing it), im sure you already have stepped on them so good job i hate them too and keep on doing it if you find one at your home but try to not do it if you find it somewhere that's not civilizated cause we still need them for something, now about the bite, first of all i need to tell you that they usually aren't aggressive just try to not press it against your skin or someone's skin. The initial brown recluse bite frequently is not felt and may not be immediately painful it usually become painful within 2-8 hours, pain and other local effects worsen 12 to 36 hours after the bite and the necrosis develops over next few days, Over time, the wound may grow to as large as 25 cm (10 inches) in extreme cases, the damage tissue becomes gagrenous and eventually sloughs away. There's some species of this genus that causes a lot of different symptoms, even death (that's a symptom? HAHA).

Im going off this week

So, this week im going off probably no posts this week, im participating in the VII Brazilian Biosafety Congress and the First International Conference of Biosafety and Biosecurity for Latin America and Caribbean it's so fucking awesome there's english speakers that lectured and spoke about Biotechnology, i understand every single word they said im so proud of myself *-*. Tomorrow is the second day (obviously) and im gonna learn about transgenic manipulation can't wait for this, see ya!

Spider or Turtle?

You're afraid of spiders? what about a turtles? lol

Venomous spiders #9 - Atrax Robustus

Scientific Classification:

Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Arachnida
Order:	Araneae
Suborder:	Mygalomorphae
Superfamily:	Hexatheloidea
Family:	Hexathelidae
Genus:	Atrax
Specie:	A. Robustus

Common Name: Australian funnel-web spider, Sydney funnel-web spider.

This spider gives me chill, even me who love spiders. Their color range goes from blue-black to black to brown or dark-plum, the carapace is almost hairless and so looks smooth and glossy sometimes it appers like a toy but unfortunately it's not, they are very agressive when bothered, SO don't bother it if you see one of them just leave it there or call the institute of animals those spiders can be used to medicinal studies. Now, about the symptoms, at the beggining the bite can be very painful due to the acidity of the venom and the size of the of the cheliceras (fang) penetrating the skin, if substantial envenomation occurs, symptoms will occur within minutes and progress rapidly and there can be many of those symptoms like nausea, vomiting, shortness of breath (caused by airway obstruction), agitation, confusion, writhing, grimacing, muscle spasms, pulmonary oedema (of neurogenic or hypertensive origin), metabolic acidosis and extreme hypertension, The final stages of severe envenomation include dilation of the pupils (often fixed), uncontrolled generalised muscle twitching, unconsciousness, elevated intracranial pressure and death. When death occurs it is generally as a result of progressive hypotension or possibly elevated intracranial pressure consequent on cerebral oedema. The average time to onset of envenomation was 28 minutes, you can die in 15 minutes to 3 days, it depends to each to each.