PDA

View Full Version : Spiders return from the "dead"


xgrafcorex
04-25-2009, 06:02 PM
http://news.nationalgeographic.com/news/2009/04/090424-spider-resurrection-coma-drowning.html?source

Interesting article I happened across while wandering the world wide web..

Scientists "drown" spiders until they are no longer responsive and later they came back around.

syndicate
04-25-2009, 09:08 PM
ahh just saw this tonight to!Interesting article!
-Chris

Triggerman73
04-25-2009, 09:30 PM
That is so cool...did they actually leave the spiders in for 24 hours? they have no lives in the real world.

Widowman10
04-26-2009, 01:58 AM
wow! that's a pretty cool article. never knew that. :clap:

jsloan
04-26-2009, 01:08 PM
Funny this thread should appear now. Yesterday, I found one of my pitfall traps had a little bit of water in it. In the water, completely submerged, was a Thanatus sp. male. I took it out and it was as limp as a wet noodle; for all intents and purposes, dead. I didn't want to just throw it away so I put it in a pill vial to take home so I could preserve it in alcohol. An hour later, the spider had revived and was good as new. I don't know how long it had been in the water.

Bastian Drolshagen
04-26-2009, 04:04 PM
hey jsloan,
you use pitfall traps without any fluid?
I usually fill my traps with saltwater and some droplets of dish-liquid.

Recently, I found a paper regarding this topic, wonder where it has gone... unfortunately not in my database :(

jsloan
04-26-2009, 04:45 PM
hey jsloan,
you use pitfall traps without any fluid?

Right now I am. :) I check them every day, and I'm using some spiders for purposes other than taxonomy, so I need them alive. Later, when I put out traps that I'll only be checking weekly, I'll probably put some propylene glycol in them (doesn't harm the environment):

http://www.dow.com/productsafety/finder/prog.htm

Here is something I found by googling. I haven't read the full article. It looks interesting, though:

http://www.springerlink.com/content/t4q610185104p052


Recently, I found a paper regarding this topic, wonder where it has gone... unfortunately not in my database :(

I'd like to see that if you can find a link to it. Thanks!

pouchedrat
04-30-2009, 07:36 PM
as a kid I used to do this at our garden pond.... drown insects then plop then in the sun and watch as they slowly twitched back to life. Obviously I was a VERY young kid and it was something terrible to do I realize now of course. But it WAS very fascinating to watch. It started with finding a couple dead insects in the water and taking them out, only to watch them slowly twitch back to life again. So I tried it myself and sure enough it happened almost every time.

ScottySalticid
05-02-2009, 08:00 PM
*starts eyeing his T's*

*notices sink in dorm room*

hmmmm....I wonder? ;P

Just kidding, but now I wonder if T's can do this too.

Bastian Drolshagen
05-04-2009, 07:13 AM
I'd like to see that if you can find a link to it. Thanks!

Found it and also added it to Endnote now :)

http://www.americanarachnology.org/JoA_free/JoA_v34_n1/arac-034-01-0159.pdf

kalvaer
05-05-2009, 03:01 AM
I wonder if T's can do this too.Well since H gigas can "swim", it wouldn't surprise me if others could as well. Just like cats, most hate water, and yet Turkish Vans love swimming. Its not that the others cant, they just prefer not to

Galapoheros
05-05-2009, 03:10 AM
as a kid I used to do this at our garden pond.... drown insects then plop then in the sun and watch as they slowly twitched back to life. Obviously I was a VERY young kid and it was something terrible to do I realize now of course. But it WAS very fascinating to watch. It started with finding a couple dead insects in the water and taking them out, only to watch them slowly twitch back to life again. So I tried it myself and sure enough it happened almost every time.

I did the same thing with caterpillars and stuff I'd find after a heavy rain that looked dead. I had a couple of centipedes that were under cold water for around 18 hours and lived, I forgot they were in that terr outside next to the house. It was a day before I saw one move though, I was just about to throw them out.

jsloan
05-05-2009, 11:40 AM
Found it and also added it to Endnote now :)

http://www.americanarachnology.org/JoA_free/JoA_v34_n1/arac-034-01-0159.pdf

Thanks! Much appreciated. I'll have to start using preserving fluid before long. More ants are turning up in the traps now.

Protectyaaaneck
05-05-2009, 12:28 PM
very cool article. thanks.

-Jason