Articles sur Biology

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Watching bacteria and viruses duke it out, evolving to outwit each other. UC San Diego

Discovery of a surprise multitasking gene helps explain how new functions and features evolve

A core idea in molecular biology is that one gene codes for one protein. Now biologists have found an example of a gene that yields two forms of a protein – enabling it to evolve new functionality.
Eric Trump said his father’s assault-talk, it is just what happens when “alpha personalities are in the same presence.” Here, President Donald Trump walks across the South Lawn of the White House in Washington, Friday, March 23, 2018. (AP Photo/Susan Walsh)

Are bullies alpha males or sick puppies?

Some recent bad behaviour has been explained as being alpha but the scientist who coined the phrase discredits that theory. Instead, Prof. Sosteric suggests alphas are raised on toxic socialization.
Emergency personnel at the Ashley Wood Recovery Centre in Salisbury as the investigation into the suspected nerve agent attack on Russian double agent Sergei Skripal continues. PA Images

The story of the Novichok nerve agents – podcast

An audio version of an in depth article on the story of how the nerve agent used in an attack on former Russian spy Sergei Skripal was developed.
Former governor general David Johnston invests Toronto scientist Janet Rossant as a Companion of the Order of Canada during a ceremony at Rideau Hall in Ottawa in 2016. THE CANADIAN PRESS/Adrian Wyld

Canada’s unsung female heroes of life sciences

Canada's female scientists are superstars in their fields yet most Canadians have never heard of them. On International Day for Women in Science, it's time to give them the recognition they deserve.
Rey (Daisy Ridley), in Star Wars: The Last Jedi, ponders the light and dark sides of the Force. (Handout)

The Force of biology is strong in Star Wars

Star Wars: The Last Jedi leaves many questions about the saga in a galaxy far, far away unanswered. Fortunately, biology may offer a insights on the Force, midi-chlorians, clones, and Rey's lineage.
Though not this obvious from the outside, plants are keeping time. Hua Lu

Studying circadian rhythms in plants and their pathogens might lead to precision medicine for people

Precisely calibrated timekeepers are found in organisms from all domains of life. Biologists are studying how they influence plant/pathogen interactions – what they learn could lead to human medicines.
Worms do have something in their mouth that they can poke out, like a tongue. It is called a stylet. Flickr/DJ SINGH

Curious Kids: Do worms have tongues?

The short answer is no. But worms can use different parts of their body to do some of the jobs that our tongues do - like tasting and crushing food.

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