Dolphins cannot drink seawater and get their liquid from their food.
Infact verdict: True (84/100).
The claim that dolphins do not drink seawater and acquire their necessary fluid from food is mostly supported by available evidence. The Dolphin Communication Project states that dolphins do not drink seawater as it would require more water to process out the salt than they gain by drinking it. Dolphins obtain necessary hydration through their diet and metabolic processes. This is corroborated by medium-reliability sources indicating similar statements. The evidence from Scientific American notes that some sea mammals may occasionally drink seawater, but this is not a common behavior for dolphins. Overall, reliable evidence supports the claim's validity.
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