Sunday, December 9, 2007

Biology News: Tuberculosis


This article is about scientist finding out that tuberculosis existed about 500,000 years ago. They find a 500,000-year-old Homo erectus fossil in Turkey with traces of evidence of tuberculosis. Before, scientists believed that tuberculosis started only several thousand years ago. This Homo erectus said to be a young male and was effected with Leptomeningitis tuberculosa, which effects the brain. The drawing on the right is a drawing of a Homo erectus.

I thought this article was pretty cool because scientists found our ancestors and found out that tuberculosis existed 500,000 years before in humans. I also wonder why scientist did not know this before.

Here's the link

Thursday, November 15, 2007

Oil Spill in San Francisco

The oil spill in San Francisco was really disastrous. It disrupted many wildlife in the ocean, mostly the fish. I think this will have a great effect on the fish economy, especially on countries that depend on fish. The oil is toxic to humans, so if we eat the toxin fish, it would be dangerous. I still don't understand why the pilot crashed into the Bay Bridge.

Monday, November 5, 2007

Blog #2: Bio News

In this article, it talked about how scientist found a new toxin to kill Bt-resistant insects. Some insects are naturally immune to many insecticides, but this new toxin could kill any insect. Scienitists tested this on pink bollworms, which are a major pest of cotton. This new toxin killed the bollworms.
After I read this article, I thought that technology is amazing and still growing and growing rapidly. But the thing that I'm a little worried about if this also effects humans. Technology is a a helpful thing, but it also harm you also at the same time.

Here's the article