A team of researchers with members from Harvard University, the University of Bonn, the University of Denmark and Yale University has identified bumps on the abdomens of male peacock spiders that make their dark-colored patches ...
Researchers from Macquarie University and the University of New South Wales have discovered a strange mechanism whereby two species of traumatically inseminating plant bug are able to live together in Tahiti, as published ...
Plants & Animals
Sep 5, 2013
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A previously unknown species of parasitoid wasp that rides on the back of damselflies before laying eggs inside their eggs, has been discovered in Taiwan by a team of scientists, including an entomologist from the Natural ...
Plants & Animals
Jul 25, 2013
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Stem cells found in amniotic fluid can be transformed into a more versatile state similar to embryonic stem cells, according to a study published today in the journal Molecular Therapy. Scientists from Imperial College London ...
Cell & Microbiology
Jul 3, 2012
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Between conception and birth, the human gut grows more than two meters long, looping and coiling within the tiny abdomen. Within a given species, the developing vertebrate gut always loops into the same formation—however, ...
Plants & Animals
Aug 10, 2011
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(PhysOrg.com) -- In a recent study published in Biology Letters, a page of science fiction comes to life in a real-life zombie scenario between the ladybug and a parasitical wasp called Dinocampus coccinellae.
Water spiders spend their entire lives under water, only venturing to the surface to replenish their diving bell air supply. Yet no one knew how long the spiders could remain submerged until Roger Seymour and Stefan Hetz ...
Plants & Animals
Jun 9, 2011
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"Weird movements" in the abdomens of freely crawling caterpillars are making headlines in the fields of engineering and biology, says Jake Socha, Virginia Tech assistant professor of engineering science and mechanics. Beyond ...
Plants & Animals
Jul 22, 2010
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Watching honeybees buzz among flowers, it's easy to see how the expression "busy as a bee" arose. One of many movements a bee's body makes is the repetitive curving and straightening of its abdomen. Now, researchers reporting ...
Materials Science
Jun 9, 2021
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Researchers in the department of entomology at the University of Illinois have shown how a species of ant uses its abdomen to add speed to its jump, in a recent study published in Integrative Organismal Biology. With a name ...
Plants & Animals
Dec 18, 2019
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In vertebrates such as mammals the abdomen (belly) constitutes the part of the body between the thorax (chest) and pelvis. The region enclosed by the abdomen is termed the abdominal cavity. In arthropods it is the most distal section of the body which lies behind the thorax or cephalothorax.
The human abdomen (also called the belly) is the part of the body between the pelvis and the thorax. Anatomically, the abdomen stretches from the thorax at the thoracic diaphragm to the pelvis at the pelvic brim. The pelvic brim stretches from the lumbosacral angle (the intervertebral disk between L5 and S1) to the pubic symphysis and is the edge of the pelvic inlet. The space above this inlet and under the thoracic diaphragm is termed the abdominal cavity. The boundary of the abdominal cavity is the abdominal wall in the front and the peritoneal surface at the rear.
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