Biological Sciences

Long Necked Dinosaur Discovered in China

The newly discovered  Qijianglong belongs to the same family of long-necked mamenchisaurids as this display. Image courtesy of Wikimedia Commons ( )

Paleontologists from the University of Alberta recently discovered a new species of long-necked dinosaurs from a skeleton found near Qijiang City in China. They reported their findings in the Journal of Vertebrate Paleontology on January 26 (1). Qijianglong, meaning “dragon of Qijiang”, is about 15 meters long and lived around...


Allergies: A Scientific Explanation

Allergies: A Scientific Explanation

Some say a sneeze and a stuffy nose come from allergies. However, a rash coming from touching or eating something can also be called an allergy. What are allergies then? What causes them? What happens inside the body during an allergic reaction? WHO IS THE BAD GUY? First, allergies are...


Human HARE5 Gene Boosts Mouse Brain Size

Scientists have successfully used HARE5, an enhancer that functions in human cortex development, to boost the size of mouse brains.

For a long time, scientists have wondered what distinguishes humans and apes. Once the human and chimp genomes were deciphered about a decade ago, scientists could discover the genetic roots of the human brain size, bipedalism, and the varied diet that makes our species quite successful. Yet, the importance of...


Scientists announce anti-HIV agent so powerful it can work in a vaccine

An HIV-infected immune system cell.  
Source: Wikimedia Commons 

Scientists from The Scripps Research Institution (TSRI) of Florida potentially discovered an anti-HIV drug so powerful that it could serve as a vaccine for HIV in the near future (1). HIV, human immunodeficiency syndrome, works to compromise an infected individual’s immune system by attacking CD4 lymphocytes, a subtype of white...


Marijuana turns appetite suppressant into appetite stimulant

Marijuana consumption stimulates the appetite by promoting CB1 activity.

As marijuana use becomes increasingly acceptable, research into the effects of marijuana has recently become more prolific. Tamas Horvath of Yale University and colleagues uncovered the aspects of marijuana use  that triggers appetite and published their results in Nature. Marijuana use stimulates appetite by prompting the CB1 receptor in cells...


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