Life Lines by Dr. Dolittle

Sponsored by the American Physiological Society

Highlights from the last day in Orlando

Today marked the final day of the 2019 Experimental Biology meeting in Orlando. As usual it was a great day for Physiology. Crupi et al., from the University of Messina and the Universita della Magna Grecia in Italy put up a poster presentation describing their research on how red blood cells respond to environmental toxins. Their research showed that isolated red blood cells from rabbits are more sensitive to venoms […]

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Dr. Terrie Williams, 2019 August Krogh Distinguished Lecture

This year’s August Krogh Distinguished Lecture was awarded to Dr. Terrie Williams from the University of California at Santa Cruz. She gave an excellent lecture on her research with dolphins, narwhals and Weddell seals examining their physiological responses to diving, which includes a remarkable ability to reduce heart rate. He current research is aimed at identifying physiological mechanisms that could explain the increasing incidence of cetaceans becoming stranded on beaches […]

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Highlights from EB 2019

There were so many poster presentations on comparative and evolutionary physiology today at the 2019 Experimental Biology conference that it was impossible to see them all. Here are some highlights: Dr. Michael Hedrick from California State University – East Bay, presented his research on African cheetahs (Acinonyx jubatus) examining adaptations that cheetahs have evolved to supply their muscles with oxygen so efficiently, given they maintain the world record for being […]

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Obese Horses

Abigail Harms, an undergraduate student at Beloit College working with Dr. Kathryn Johnson, also presented her research today at the Experimental Biology 2019 conference examining the effects of obesity in horses. Just like humans and pets, horses are increasingly becoming obese. Her research is seeking ways to measure hormonal changes that occur with obesity in different breeds of horses.  

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Mourning doves do not need to watch their figures

So jealous. Research presented by Anthony Basile, graduate student in the laboratory of Dr. Karen Sweazea at Arizona State University, at Experimental Biology 2019 examined how mourning doves would respond to a diet high in saturated fats. He reported on how mice fed a similar diet develop pathological changes in hormones and metabolism, as would be expected. But, doves fed a similar diet did not seem to show any notable […]

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Dietary carotenoids and oxidative stress- What can we learn from birds?

Congratulations to this year’s Dr. Dolittle Travel Award winner, Alex Mohr from Arizona State University! Alex is presenting his research at the annual Experimental Biology conference in Orlando, FL (Mohr AE, Girard M, Rowe M, McGraw KJ, Sweazea KL.¬†Varied Effects of Dietary Carotenoid Supplementation on Oxidative Damage in Tissues of Two Waterfowl Species).¬† Here is his award-winning blog entry describing his research on carotenoids in ducks: In relation to tissue […]

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How ground squirrels recycle nitrogen

Hibernation is a rather remarkable strategy some animals use to survive winter when food availability is limited. Dr. Matthew Regan, a postdoctoral fellow in the laboratory of Dr. Hannah Carey at the University of Wisconsin in Madison, presented research at the Experimental Biology 2019 conference today that explored how 13-lined ground squirrels (Ictidomys tridecemlineatus)¬†regulate protein metabolism during hibernation. What is remarkable about 13-lined ground squirrels in particular is that they […]

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