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by _0w8t 2524 days ago
Elephants that live in savannas in Africa are prone to atherosclerosis, while those living in forest areas are not. [1] discusses that it can be due to food. In savanna elephants are forced to feed on grains and dry grass, while in forest they feed on leaves, which is probably more natural.

[1] Staffan Lindeberg. Food and Western Disease: Health and Nutrition from an Evolutionary Perspective