A new computational model developed by researchers from The City College of New York and Yale gives a clearer picture of the structure and mechanics of soft, shape-changing cells that could provide a better understanding of cancerous tumor growth, wound healing, and embryonic development.
Move over, trap-jaw ants and mantis shrimp: There's a faster appendage in town. According to a new study, the Dracula ant, Mystrium camillae, can snap its mandibles at speeds of up to 90 meters per second (more than 200 mph), making it the fastest animal movement on record.
Rotator Cuff tears affect 15 percent of 60 year olds and carry a significant social and financial burden. Current operative techniques and repair adjuncts are associated with unacceptably high failure rates, stimulating investigation into novel tissue engineering and regenerative medicine (TERM) approaches in the field of rotator cuff surgery. In this review researchers explore the most recent advances in the field of electrospinning, focussing on proposed tissue-engineered solutions in tendon, specifically the rotator cuff.
Animals are much better at smelling a complex 'soup' of odorants rather than a single pure ingredient, a new study by the University of Sussex has revealed.
Morris Animal Foundation-funded researchers have developed a new treatment for dogs with a rare, but life-threatening, arrhythmia caused by atrioventricular accessory pathways (APs). The minimally invasive technique, which uses radiofrequencies, is modified from a human cardiology procedure and has a more than 95 percent success rate in treating dogs with this type of arrhythmia.
The plant hormone jasmonic acid also performs a function that was previously unknown. It ensures that the leaf pores close when leaves are injured. For the plant, this could be an emergency signal.
Spider silk belongs to the toughest fibres in nature and has astounding properties. Scientists from the University of Würzburg discovered new molecular details of self-assembly of a spider silk fibre protein.
Geckos are amazingly agile. In addition to running across land and up trees, the animals can prance across the surface of water. A new study reveals how they do it.
Asian geckos were observed running over water at nearly a meter per second, as fast as on land. Lab experiments at UC Berkeley show how. They get support from surface tension but also slap the water rapidly with their feet. They also semi-plane over the surface and use their tail for stabilization and propulsion. They thus sit between insects, which use only surface tension, and larger animals, which run upright via foot slapping alone.
Geckos run across water at up to almost a meter a second using a unique mix of surface tension and slapping, say researchers reporting Dec. 6 in the journal Current Biology. They found that the mouse-sized lizards are too big to float on water using only surface tension, like insects, but too small to use only foot slapping, like basilisks.