Evolution

Where Did Viruses Come From?

Viruses are not living things - so where did they come from? Scientists have proposed three different hypotheses.

Kara Layton

Job Title

Postdoctoral Fellow

Kara Layton is a Postdoctoral Fellow at the Memorial University of Newfoundland.

Biology Videos

Natural Selection in Your Backyard

A study on bird feeders and beak sizes shows how an everyday human activity can affect the evolution of another species.

How to Find a Mate When You Smell Like Dung

Some dung beetles use alternative reproductive tactics to increase their chances of finding a mate. Learn what this tells us about evolution and biodiversity.

Why Don't Fish Freeze in Cold Arctic Waters?

Ever wonder how fish survive in the cold waters of the Arctic and Antarctic? It’s partly because of a brilliant evolutionary adaptation.

Why Scientists Believe in Evolution

Scientists have accumulated so much evidence in the theory of evolution that it is one of the most widely-accepted theories in science.

Narwhals, polar bears and other common Arctic animals swim in the Arctic waters. Image © id-work, iStock

How are Arctic Animals in Canada Affected by Climate Change?

Arctic animals have evolved to thrive in harsh arctic ecosystems, but the environmental footprint created by climate change is affecting their survival.

Ella Harvey

Job Title

Data Manager

Ella Harvey is a data manager at BOLD (Barcode of Life Data System).

Gonzalo Giribet

Job Title

Professor of Organismic and Evolutionary Biology

Gonzalo Giribet is a professor of organismic and evolutionary biology at Harvard University.