Saturday, September 17, 2016

So Then We Got Interested by Spider Guts

How about a pop quiz on spider anatomy ... when neither of us knows spider anatomy.



Take a scan around his spider bits to see if anything strikes you as unusual.  This is not science but rather arachnid impressionism.

Note:  unknown if it helps but I did look to see if any culture of humans actually eats spiders but that does not appear to be so.  We may have found the one thing humans actually will not eat.


As you're looking about his arachnoidal self, it may help things to see:

Mostly Cephalothorax

Yellow is Brain / Ganglion for almost all of the Nervous system
Pink is small part of the Digestive system
Red is a tiny part of the Circulatory system

Mostly Abdomen

Red w/Black is the Pulmonary system (i.e. lungs)
Orange is the Reproductive system
Purple is for spinning silk

At first I wasn't sure about the size of the Nervous system but that makes sense for all the higher functions plus simply coordinating all those legs.  The brain looks like the largest single entity in the animal and that makes sense for those devious little bastards but the interesting thing at the Rockhouse is the parts he prizes as much as his brain and keeps beside it.

Those simple eyes plus also however many more for the total are right there, tight with the brain.  The other part the spider wants closest is the venom gland so this seems, from an uneducated guess, that his eyes and his attack/defense are the two highest brain demands on him.  Even the main chambers of his heart don't rate high enough for the upper part of his body.

It appears the Autonomic nervous system in us (i.e. the automatic functions such as heart beat, breathing, etc) is almost all in the spider's abdomen.  All of the parts of him which require decision making are up as closely as possible to his head with the thorax anchoring the legs.

The evolution of it is so incredible since you could whack off his entire abdomen and he will be a remain a highly-dangerous creature until he kicks off.


Dr George Uetz at the University of Cincinnati was a fine folk guitar player and he also had a bit of a predilection for raising black widow spiders, many, many of them.  His lab was, thus, a scary place but the music was good.  He got at least one of his songs accepted for the annual WEBN album project so do believe he had good moves.

Although I have used past tense, there's no reason to believe he is an ex-breeder of black widows.  It's been quite some time since seeing him so that's the only reason for specifying tense.  It would be so tempting otherwise to call him up to say, "Hey, George.  I was thinking about spiders, man."

Right away and he's into it since just think to yourself how many times people say to him they actually want to hear about spiders.  As soon as you're into it, hey, let's go.

No comments: