Life Lines by Dr. Dolittle

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Tag Archive for ‘climate’

Adapting (or not) to increasing temperatures

Birds are not the only animals experiencing massive declines in populations. Rising temperatures and heat waves, in particular, have been blamed for killing humans and animals. In fact, a new review article published in Physiology mentioned that globally, heat is “a significant natural killer of humans, with the first decade of the 21st Century seeing a 23-fold increase in human casualties from heat waves compared with the 1990s.” If current predictions hold true, […]

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Benefits to being furry, but not fat, in a cold environment

To deal with cold environments, mammals have several options. They could produce heat by increasing metabolism or shivering or they could conserve heat by constricting blood vessels in their skin or snuggling with a friend or insulating materials. With this in mind, researchers wondered how varying levels of insulation (obesity, fur) in mice affected heat loss and how much energy the animals used to maintain body heat. Their thinking was […]

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Experimental Biology 2016 – Day 2

Today was a great day for trainees in comparative physiology! Here are some of the highlights from their sessions: Poster presentations: Alexis MacDonald et al., (Union College – Mentor Dr. Scott Kirkton) presented research showing that grasshopper skeletal muscles may use lactate for energy! Similarly, Dongying Wang et al., (Saint Louis University – Mentor Dr. Daniel Warren) also showed that skeletal muscle from painted turtles may use lactate. I guess it […]

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