Apex marine predators choose who they hang with, researchers reveal.
White sharks form
communities, researchers have revealed.
solitary predators, white sharks (Carcharodon
carcharias) gather in large numbers at certain times of year in
order to feast on baby seals.
These groupings, scientists had assumed, were essentially random – the result of individual sharks all happening to turn up in the same area, attracted by abundant food.
a group of researchers including behavioural ecologist Stephan Leu from
Macquarie University in New South Wales, Australia, have used photo-identification
and network analysis to show that many of the apex predators hang out in groups
which persist for years.
More than 40 million people have major surgery in China each year. For every one of them the nature of consciousness is a very practical concern. Too low a dose of anaesthetic could see you wake up during the operation. Too high a dose could have long term health consequences.
Currently, the best monitoring devices can only monitor a suite of secondary indicators of consciousness. A Guangdong company has partnered with the University of Southern Queensland (USQ) with the aim of making anaesthesia easier and safer. They’re creating an intelligent device to directly measure the depth of unconsciousness and adjust the anaesthetic dose in real time.
It’s difficult to get medical devices out of academia and industry and into end-users’ hands. But a South Australian researcher developed a way to do it—and the program is now set to expand nationally, thanks to funding from the Medical Technologies and Pharmaceuticals Industry Growth Centre.
A cheap and simple material, using sulphur from petroleum industry waste and plant oils from the food industry, is being tested to clean up mercury pollution from soil and water.
The rubbery material will undergo field tests in 2017 in Australian mining and sugarcane sites, the latter of which use fungicides that contain mercury. The work is supported by funding from the National Environmental Science Programme’s emerging priorities funding.