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Two hypotheses have been proposed for the evolution of structures that reduce flight sounds in birds. According to the stealth… Expand 3 Abstract: The diet of the Brown-fish Owl (Ketupa zeylonensis) was studied for the first time in the forest habitat of Melghat… Expand • The Arctic tundra in northern Russia (Biome AS01: Arctic tundra and SA 087: Chukotski peninsula) is immensely rich in breeding… Expand The karyotypes of 39 avian species new to cytology are described, viz. Pelecanus crispus, P. occidentalis and Morus bassanus… Expand The effects of Cystone therapy were studied in this comparative trial on 297 patients complaining principally of burning… Expand Royal Colleges of Physicians and Surgeons, Edinburgh.?The following gentlemen passed their final examination for the double… Expand