Tiny Crow Camera Spies On Clever Birds:
A new technique developed by Oxford University zoologists enables researchers to 'hitch a ride' with wild birds and witness their natural and undisturbed behaviour. The scientists developed miniaturised video cameras with integrated radio-tags that can be carried by wild, free-flying birds. Using this new 'video-tracking' technology, they spied on the behaviour of New Caledonian crows, a species renowned for its sophisticated use of tools, recording behaviours never seen before.
Diet With A Little Meat Uses Less Land Than Many Vegetarian Diets:
A low-fat vegetarian diet is very efficient in terms of how much land is needed to support it. But adding some dairy products and a limited amount of meat may actually increase this efficiency, Cornell researchers suggest.
An extraordinary advance in human origins research reveals evidence of the emergence of the upright human body plan over 15 million years earlier than most experts have believed. More dramatically, the study confirms preliminary evidence that many early hominoid apes were most likely upright bipedal walkers sharing the basic body form of modern humans.
Difference Between Fish And Humans: Century-old Developmental Question Answered:
Embryologists at UCL (University College London) have helped solve an evolutionary riddle that has been puzzling scientists for over a century. They have identified a key mechanism in the initial stages of an embryo's development that helps differentiate more highly evolved species, including humans, from less evolved species, such as fish. The findings of the research, funded by the Biotechnology and Biological Sciences Research Council (BBSRC), were published online by the journal Nature.
Life Science
Comments
I don't really see the point in using terms like "more highly evolved" and "less evovled" in the article about the differences between fish and humans in development. It's an old, old way of thinking about organisms that I thought Darwin showed was wrong. All species today have evolved the same. The original article use the terms amniotes (birds and mammals) and anamniotes (fish and amphibians), which have the same information in them and doesn't use wrong biological terms.
Posted by: Tierhon | October 11, 2007 7:35 AM