Monthly Archives: May 2012

One more genetic clue about what makes us human

Where do we come from? If there’s one question that has obsessed humanity since the dawn of time, maybe that’s the one. In The Descent of Man, Charles Darwin wrote: “We thus learn that man is descended from a hairy,

One more genetic clue about what makes us human

Where do we come from? If there’s one question that has obsessed humanity since the dawn of time, maybe that’s the one. In The Descent of Man, Charles Darwin wrote: “We thus learn that man is descended from a hairy,

Of the usefulness of leeches

Leeches. Yuck! Yeah, I understand your feeling. It took all my self-control not to shriek in horror when I discovered two of these blood suckers on my legs as I was hiking in a wet and muddy corner of Tasmania.

Of the usefulness of leeches

Leeches. Yuck! Yeah, I understand your feeling. It took all my self-control not to shriek in horror when I discovered two of these blood suckers on my legs as I was hiking in a wet and muddy corner of Tasmania.