Molecular ruler sets bacterial needle length

When a salmonella bacterium attacks a cell, it uses a nanoscopic needle to inject it with proteins to aid the infection. If the needle is too short, the cell won't be infected. Too long, and the needle breaks. Now, University ...

Native bees often better pollinators than honey bee

In 2007, the world was introduced to a plague so disturbing it seemed almost biblical. Out of the blue, honey bees were dropping dead or worse, vanishing into the air by the millions. In the four years since, colony ...

New info on an elusive green cicada

For nearly 80 years, the North American cicada Okanagana viridis has received little attention in scientific literature, but a new article in the Annals of the Entomological Society of America provides the first notes on ...

Costly copulation - research reveals the price of having sex

(PhysOrg.com) -- A recent study by Darrell Kemp, of Macquarie University, looking at the mating behaviour of the Australian plague locust has found that reproducing has a particularly high cost. According to Kemp, the rate ...

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