Fun fact, a spiders brain is so large it takes up almost all available space in the prosoma. And in some species it’s so large it extends into the first segment of each leg.
Doesn't mean that they have a sense of imagination, suffer from boredom, are capable of understanding that they're playing, or need to be mentally stimulated in order to live healthy lives. Hence the G. rosea which can go ten years without moving.
I think you are confusing the brain with the digestive tract. If that is a wrong assumption, I would like to know where you got your facts so I may review them myself. The brain is fairly tiny and takes up a small area in the anterior region of the prosoma between the eyes and the sternum. It is the digestive tract which so extensive that it takes up the majority of the space in the prosoma and extends into the coxae of the legs.
Well how do you define what a brain is? Everyone seems to dismiss the complexity of a spider brain by referring to their central nervous system as ganglia. The spider brain is composed of two interconnected regions called the supra and sub esophageal ganglia. The 'supra' ganglion is the 'smart' region which is responsible for sensory input and cognition, where the 'sub' ganglion is the 'dumb' region responsible for motor functions. Both regions work together to function as one organ that can referred to as a brain. However, in the academic literature, biologists use the term 'brain', when referring to spiders, in different ways. Sometimes it is used to refer to the supra esophageal ganglion specifically and other times it is the whole organ. Other times the term 'brain' isn't used, and central nervous system (CNS) is preferred.
Its not up to me, that is for science to define, and they have, and while the ganglion is the "brain" of a t, its still not a brain as its defined, which is why its technical term is not brain, but rather a ganglion.
Its not a dismissal of anything, its merely how its scientifically defined. A ganglion is still a pretty darn complex organ.
Sure, the term brain is sometimes used because, to the t, that's basically what it serves as and "brain" is more easily understood by the masses, but its still not technically a brain....like when people often use the term kleenex, because its what's most commonly used, even if its technically called a tissue.
I think I may have started something with ping pong balls. Ha ha
www.nationalgeographic.com
Its a stupid idea to tear down their web!!
You did not start anything with ping pong ballsI think I may have started something with ping pong balls. Ha ha
In case any missed it (link to video attached) there was certainly some form of stimulation/interaction here.
Whether that was play, prey or some maternal instinct (confusion with egg sac) who can tell and I for one will not speculate. But it was real and the video proves it so just sit back and enjoy it for what it is
I sit corrected
Yeah, hopefully that's an acceptable term to everyone
