Search results
Results from the WOW.Com Content Network
All spiders possess photosensitive microvilli which have the capacity to be sensitive to the polarisation of light, as they preferentially absorb light oscillating parallel to their long axis. These microvilli are arranged orthogonally in the eyes of several families, including jumping spiders , wolf spiders , and nursery web spiders .
As of 2019, this family contained over 600 described genera and over 6,000 described species, [1] making it the largest family of spiders – comprising 13% of spider species. [2] Jumping spiders have some of the best vision among arthropods and use it in courtship, hunting, and navigation. Although they normally move unobtrusively and fairly ...
These spiders, called mirror or sequinned spiders, are all members of several different species of the genus Thwaitesia, which features spiders with reflective silvery patches on their abdomen. The scales look like solid pieces of mirror glued to the spider's back, but they can actually change size depending on how threatened the spider feels.
a: ^ Jackson and Blest (1982) say, "The resolution of the receptor mosaic of Layer I in the central retina was estimated to be a visual angle of 2.4 arc min, corresponding to 0–12 mm at 20 cm in front of the spider, or 0–18 mm at 30 cm." b: ^ Several species of cursorial spiders drink nectar as an occasional supplement their diet, and juveniles of some orb-web spiders digest pollen while ...
Phidippus audax are commonly referred to as "bold jumping spiders" or "bold jumpers". [8] The species name, audax, is a Latin adjective meaning "audacious" or "bold". [8] This name was first used to describe the species by French arachnologist Nicholas Marcellus Hentz, who described the spider as being, "very bold, often jumping on the hand which threatens it". [9]
Like all other jumping spiders, M. intermedia possesses eyes of differing sizes in anterior, lateral, and posterior positions. [2] The nature of the eye formation and composition has given rise to some of the most elaborate vision-dependent hunting strategies observed in the animal kingdom [ 3 ]
What they look like: Hobo spiders are tannish-brown and the top of the spider may look mottled, with darker and lighter spots, Potzler says. They look pretty hairy and have spiny hairs coming off ...
Like other jumping spiders, T. planiceps relies on their very acute eyesight for hunting. The anterior median eyes are the primary eyes used for capture of stationary prey while the anterior lateral eyes are the main eyes used in chasing Both sets of eyes can be coordinated to enable switching from one hunting type to the other. [6]