Search results
Results from the WOW.Com Content Network
The diving bell spider or water spider (Argyroneta aquatica) is the only species of spider known to live almost entirely under water. It is the only member of the genus Argyroneta . [ 6 ] When out of the water, the spider ranges in colour from mid to dark brown, although the hairs on the abdomen give it a dark grey, velvet -like appearance. [ 7 ]
The Japanese water spider spins four main kinds of silk: (1) silk used for the diving bell, (2) silk to anchor the diving bell to water plants, (3) silk for "walking" so as to get prey and mate, and (4) silk for the egg-cocoon. [5] The diving bell silk is "used for breathing," that is it serves to oxygenate the diving bell. [6]
Spider behavior refers to the range of behaviors and activities performed by spiders. Spiders are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom . They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms [ 1 ] which is reflected in their ...
In 1988, Australian screenwriter Andrew Wright participated in a diving expedition to the Pannikin Plains cave system, which turned to disaster when flash floods collapsed the entrance to the caves.
Cybaeidae is a family of spiders first described by Nathan Banks in 1892. [1] The diving bell spider or water spider Argyroneta aquatica was previously included in this family, but is now in the family Dictynidae. [2] [3]
Threads radiate out of the nest to provide a sensory link to the outside. Silk is a component of the lids of spiders that use "trapdoors", such as members of the family Ctenizidae, and the "water" or "diving bell" spider Argyroneta aquatica forms a silk diving bell. [35] Guide lines
While the earliest chelicerates and the living Pycnogonida (if they are chelicerates [70]) and Xiphosura are marine animals that breathe dissolved oxygen, the vast majority of living species are air-breathers, [82] although a few spider species build "diving bell" webs that enable them to live under water. [84]
A number of insects have an aquatic juvenile phase and an adult phase on land. In these case adaptions for life in water are lost at the final ecdysis. A number of orders of insects such as mayflies, caddis flies and stone flies have aquatic juvenile stages while some orders such as Lepidoptera have just a few examples such as China mark moths.