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Articles on DNA

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A three-banded clownfish (Amphiprion ocellaris) navigates the anemones of the Andaman Coral Reef, India. Ritiks/Wikipedia

Why does Nemo the clownfish have three white stripes? The riddle solved at last

Our children all know the little clownfish Nemo, star of the Pixar film. But why does he have three stripes, rather than one or two? Developmental and evolutionary biology are revealing the answer.
Photo by Kat J on Unsplash

Extreme stress in childhood is toxic to your DNA

Separating children from their parents is not just a psychological stress, it’s a DNA stress. Scientific research shows that early life stress may have irreversible effects on how DNA works in the cells of the body.
Sunset looking across Port Warrender to the Mitchell Plateau on the Kimberley coast. It is in Wunambal Gaambera country. Mark Jones Films (with permission)

How to get to Australia … more than 50,000 years ago

The first people to make it to Australia could have navigated their way by sea crossing, reaching the north-west coastline of the island continent more than 50,000 years ago.

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