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EVALUATING EXPERIMENTS

Wild gull chase

Professor of behaviour genetics Kevin O’Dell takes us on a journey to Canada, where he introduces a bounty of birds with a range of traits, in order to challenge us with chi-square calculations and the Hardy–Weinberg equilibrium

Most gull chicks look very unlike their parents until almost mature, but the phenotypes of Hull and Dull gull chicks are evident when they are first hatched

It had always been your dream to travel to northern Canada to study its extraordinary wildlife. Your aunt lives there, and has always been a bit of an amateur survivalist, so you are interested in discovering how she, and the other wild animals, manage to cope with the intensely harsh Canadian winters. You decide to pay her a visit.

When you first arrive at your aunt’s house you are shocked at how isolated it is. Your initial concerns are nothing compared with your absolute horror when your aunt suggests you sleep in the large, unheated tent at the end of her snowbound garden.

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Psoriasis

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Jumpin’ pumpkins

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