The Ogre-facedspider, also known as the net-castingspider, was first documented in 1839 by the entomologist William Sharp Macleay. The Ghostface Spider has a total of 4 pairs of eyes, one of which is super large, that is, the back middle eye, hanging on the small face, which is even more watery than the girl comic. Mr. Maclee was frightened by the big eyes of the ghost-faced spider, so he named it Deinopis in Latin, Deinos means terrible, opis means appearance, that is, scary-looking spiders....
The ghost-faced spider's large, watery eyes were actually just a couple of four pairs of eyes
Ghost-faced spider in English Ogre-faced, the word Ogre, meaning ogre, originated more than 3,000 years ago, located in the Italian peninsula and Corsica of the Etruscan civilization (Etruscancivilization), the legend is tall and loves to eat meat, especially love to eat babies and children, the movie Shrek is based on Ogre, created characters.
By the way, don't think that this Mr. McLee, who is frightened at every turn, is a greenhouse flower that has never seen the world. As a British civil servant, Mr. Maclee has had a wonderful life. After graduating from Cambridge University, Mr. Maclee was assigned to work at the Embassy in Paris, then to Havana, Cuba, and after retirement to settle in Australia (the Ghostface Spider was found in Australia). Mr. Macleey knows many celebrities in the scientific community, including the grandfather of paleontology, George McLee. Mr. Georges Cuvier, who has also published articles with Mr. Darwin, the originator of acting chemistry, has a glittering resume.
In the classification of animals, Mr. Maclee has his own set of opinions, called Quinariansystem, which believes that all animals can be divided into 5 major categories, and each large category can be divided into 5 sub-categories, and so on. Although this theory was hotly discussed in Britain for 20 years, it eventually faded, but it still influenced many scientists, including Darwin's later ideas on evolutionary theory.
The ghost-faced spider sleeps stiffly on the palm leaf during the day, and it can't really be seen without being careful
Found by such a powerful scholar, this grimace spider really has some skills, and its body is full of powerful survival skills. The ghost-faced spider that emerges day and night, stretches its hands and feet during the day, sleeps on palm leaves, and its color and background are completely integrated, which is difficult enough to find. In the evening, the ghost-faced spider weaves a web and prepares to come to dinner. As A coffee ghost-faced spiders, of course, to weave an A-shaped net, but this web is not only sparse, but also not sticky, can not stick to the prey, how do they survive?
A-line web of ghost-faced spiders
Of course, the A coffee ghost face spider will not use the old trick of waiting for the rabbit, life is not active, how can there be a good life. Don't forget that the ghost-faced spider has another English name, net-castingspider, the web-casting spider. He will make a sticky four-square net in his hand, as soon as he feels the prey approaching, he will take the initiative to attack, cast the net to catch the prey, and live a down-to-earth life.
The ghost-faced spider holds a bouncy and sticky web in its hand, waiting to take the initiative
In order to know whether the ghost-faced spider uses its large watery eyes to perceive the action of its prey in the dark, Jay Stafstrom, a professor in the Department of Neurobiology and Behavior at Cornell University and a postdoctoral researcher in the laboratory of Mr. Ronald Hoy, will use dental opaque silicone to blindfold the ghost-faced spider's double eyes, making it temporarily blindfolded, and then observe its hunting behavior in the wild. Or in the lab, see if he can catch it, the fat grasshopper in front of him.
Sure enough, whether in the wild or in the laboratory, the blindfolded ghost-faced spider has dropped a lot in the net hit rate, which shows that the big eyes are indeed a sharp weapon for the ghost-faced spider to prey on. But in the course of his observations, Mr. Jay Stafstrom also found that blindfolding only affected the prey that ghost-faced spiders caught on the ground. For small insects flying in the air, even masked ghost-faced spiders can do a backflip with a bang, and the heavenly net accurately covers the naïve prey.
The martial arts cheats of the ghost-faced spider, eat me a trick of the heavenly net
How on earth did the ghost-faced spider feel its prey in the air? Jay Stafstrom speculates that the ghost-faced spider used to listen, feeling the sound of prey flapping its wings in the air. But the ghost-faced spider has no ears, so how can it hear the sound? This knocked out Jay Stafstrom, so he did another experiment to find the answer.
He took the ghost-faced spider back to the lab and, together with Professor GilMenda, observed the neural activity in the ghost-faced spider's brain and legs. They played different audio sounds, from 100 hertz all the way to 10,000 hertz, and found that they could stimulate the neural activity of the ghost-faced spider. The frequency of general insect flapping wings is at most 1 kilohertz, why do ghost-faced spiders feel 10,000 hertz?
The legs of the ghost-faced spider can feel the sound of various frequencies, from 100-10000 hertz can not overwhelm it
Jay Stafstrom deduces that the natural enemies of ghost-faced spiders, birds that fly around during the day in search of food, some of the calls can reach 10,000 hertz. Perhaps the 10,000 hertz hearing of the ghost-faced spider is not used to prey, but to save life. More scientists will need to work together in the future to uncover the secrets of more ghost-faced spiders.