Which rules evolutionary change: Life or climate?

The fossil record over the last half a billion years shows biodiversity as a zigzagging pattern of species births and extinctions. For decades scientist have attempted to answer the question: Which rules supreme—life or ...

A gentler, more precise laser cutting technique

Laser cutting techniques are usually powered by high energy beams, so hot that they melt most materials. Now scientists from McGill University have developed a gentler, more precise technique using low-power visible light.

How COVID-19 put poverty reduction back on the agenda

Lower income people bore the brunt of the economic repercussions of the COVID-19 pandemic. As a result, efforts to reduce poverty were adopted in Canada and the United States. But how did partisan politics shape each government's ...

A blueprint for life forms on Mars?

The extremely salty, very cold, and almost oxygen-free environment under the permafrost of Lost Hammer Spring in Canada's High Arctic is the one that most closely resembles certain areas on Mars. So, if you want to learn ...

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