Life Lines by Dr. Dolittle

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Tag Archive for ‘migration’

Evolving to thrive on land

Scientists Xueping Wang, Deidra M. Balchak, Clayton Gentilcore, Nathan L. Clark, and Ossama B. Kashlan from the University of Pittsburgh are presenting their research today on how sodium channels evolved as animals moved onto land at the 9th Aldosterone and ENaC in Health and Disease: The Kidney and Beyond Conference in Colorado. Sodium channels found in epithelial cells (ENaCs) are very important in regulating salt and water balance especially in the […]

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Experimental Biology – Day 3

I LOVE THIS MEETING! DAY 3 included several very interesting comparative physiology sessions. Eldon Braun (University of Arizona) spoke about how birds have a unique way to prevent water loss and thereby dehydration. In mammals, the kidneys are responsible for recovering water from the urine. However when birds are well-hydrated, the urine enters the colon and moves backwards up the gastrointestinal tract to facilitate water reabsorption prior to voiding the […]

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