Spending Valentine’s Day with your sweetheart might just take on a new meaning ... an evolutionary one. Even though we live in an era in which endless opportunities for a mate are just a swipe left or right, science suggests that maybe we all have that one special someone out there. Social monogamy is the … Continue reading 23 and We? Mating for Life Could Be Genetic
On February 2, the country’s most famous groundhog, Punxsutawney Phil, was once again pulled out of hibernation to ask whether we can expect six more weeks of winter. His verdict: an early spring, though according to some reports, his predictions are not very reliable. One thing that is for sure, however, is that winter is … Continue reading Why Groundhogs Really Hibernate (It’s Not Just to Predict Six More Weeks of Winter)
Take a deep breath in. Now breathe out. Each time we breathe, oxygen enters the bloodstream to keep our organs alive and working. When oxygen can’t get to our body’s tissues, they begin to fail. This is true of all organs, but most of all the brain. In conditions like stroke and cardiac arrest—when the … Continue reading Running on Empty: No Oxygen Needed!
Animals can be cute, cuddly, weird-looking and even scary. To a comparative physiologist—someone who studies the physiological function of different species—animals can also be the key to understanding human health. Animals can provide clues about the world’s larger ecological systems. This is becoming more and more important as climate change and pollution become two of … Continue reading Survival of the Fishes: Research in Comparative Physiology
They aren’t moving. They’re not responding to touch or light. Their hearts aren’t beating. They’re no longer breathing. Their skin is ice-cold and hard to the touch. By that description, you probably don’t think I’m describing living things. However, there are some animals that survive like this because of a process called freeze tolerance. Unlike … Continue reading How Do Frogs Survive the Cold? By Freezing
So much of what we hear in health news today involves how what we eat or how much we move affects the way we live. For example, if we overeat sugar or unhealthy foods and don’t get enough exercise, we can find ourselves at increased risk for diabetes and cardiovascular disease. These can affect our … Continue reading Look to the Sky for Lessons in High Blood Sugar