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Latest Chelicerata Stories

Extinct Arthropod Had Big Claws Spider Brain
2013-10-16 15:15:35

Brett Smith for redOrbit.com - Your Universe Online While finding an intact fossil of any kind can be an exciting discovery, an international team of paleontologists recently discovered the earliest known complete nervous system in the fossil of a never-before described creature that crawled or swam in the ocean some 520 million years ago, according to a report in the journal Nature. The researchers said the fossil belongs to an extinct group of marine arthropods known as megacheirans,...

Image 1 - Researchers Reveal Spider Mite's Secrets
2011-11-24 04:48:50

Blueprint of spider mite may yield better pesticides A University of Utah biologist and an international research team decoded the genetic blueprint of the two-spotted spider mite, raising hope for new ways to attack the major pest, which resists pesticides and destroys crops and ornamental plants worldwide. The voracious mites, which technically are not insects, can eat more than 1,100 plant species — a rare trait. The mites' newly revealed and sequenced genome contains a variety...

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2010-02-11 09:55:00

Any way you look at it -- by sheer weight, species diversity or population -- the hard-shelled, joint-legged creepy crawlies called arthropods dominate planet Earth. Because of their success and importance, scientists have been trying for decades to figure out the family relationships that link lobsters to millipedes and cockroaches to tarantulas and find which might have come first. In a scientific and technological tour de force that was nearly a decade in the making, a team of scientists...

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2009-04-30 13:50:23

Researchers have discovered a male spider in the Judean foothills of Israel with an evolutionarily effective yet sadistic sexual perversion. For most spiders, the mating ritual involves the male ejecting sperm into the female's vulva, where it is stored it in a pouch called the spermatheca. These receptacles give the female control of when her eggs will be fertilized, by moving sperm onto them before she lays. The spermatheca is a "last in, first out" structure which means that the last male...


Word of the Day
toccata
  • In music, a work for a keyboard-instrument, like the pianoforte or organ, originally intended to utilize and display varieties of touch: but the term has been extended so as to include many irregular works, similar to the prelude, the fantasia, and the improvisation.
This word is Italian in origin, coming from the feminine past participle of 'toccare,' to touch.
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