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Methods of Drinking:
– Humans complete the swallowing process through peristalsis
Liquid can be poured from hands or drinkware used as vessels
– Drinking can involve acts of inhalation, especially with hot liquids
– Infants use the suction method by creating a vacuum with their lips
– Animals like cats, canines, and ruminants have different methods of drinking

Birds’ Drinking Behavior:
– Birds drink using gravity, sucking, or with their tongues
– Most birds raise their heads to let liquid flow by gravity
– Pigeons and doves pump water up by peristalsis in their esophagus
Nectar feeders like hummingbirds use grooved tongues to drink
– Many seabirds have glands near the eyes to drink seawater

Insects’ Drinking Habits:
– Insects obtain water from food and absorb humidity through their cuticles
– Some desert insects drink from nighttime fog
– Dehydrated insects will drink from standing water
– Most terrestrial insects do not need to drink water
– Drinking habits vary among insect species

Marine Life Drinking Habits:
– Amphibians and freshwater aquatic animals absorb water through their skin
– Saltwater fish drink water through their mouths and eliminate excess salt through gills
– Saltwater fish excrete a small volume of concentrated urine
– Marine life in freshwater environments do not need to drink water
– Drinking habits in marine life are adapted to their aquatic environments

Hydration and Dehydration:
– Humans require water for tissue hydration
Dehydration can lead to death by hypernatremia
– Overhydration can dangerously dilute salts in the body
Water intoxication can occur from excessive water consumption
– Daily water intake recommendations vary based on factors like activity level and body size

Drinking (Wikipedia)

Drinking is the act of ingesting water or other liquids into the body through the mouth, proboscis, or elsewhere. Humans drink by swallowing, completed by peristalsis in the esophagus. The physiological processes of drinking vary widely among other animals.

A man drinking

Most animals drink water to maintain bodily hydration, although many can survive on the water gained from their food. Water is required for many physiological processes. Both inadequate and (less commonly) excessive water intake are associated with health problems.

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