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| Description: Body weight in sociable weavers is a trade-off between risks of starvation and predation Food supplies are limited – leaner birds do not store enough fat to avoid starvation Fatter birds may be more attractive to predators, and not as agile when escaping Birds of intermediate weight have the selective advantage Picture Stats: Views: 60 Filesize: 298.74kB Height: 1140 Width: 949 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=48488 |