Natural history
págs. 2-4
The living Gömböc: Some turtle shells evolved the ideal shape for staying upright.
Adam Summers, Joe Sharkey (il.)
págs. 22-23
To kill a cormorant: Are double-crested cormorants overrunning their niche-or simply recovering from centuries of suppression?.
págs. 24-29
Between a rock and a hyrax: Two closely related species find safety in numbers-except in the presence of people.
págs. 30-35
pág. 48
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