Muscle wasting is a major complication associated with cirrhosis and liver failure. Normally the liver functions to convert ammonia into urea. But with liver failure, this process does not work well leading to high levels of circulating ammonia, which is thought to contribute to muscle wasting in mammals. A new study published in the American Journal of Physiology – Regulatory, Integrative and Comparative Physiology, explored whether birds have the same muscle wasting […]
Tag Archive for ‘bird’
A new study published in the Proceedings of the National Academy of Sciences shows that ravens appear to share negative emotions. The researchers started with offering birds two boxes placed on the left and right sides of the animals. While one box was empty, the other contained a piece of cheese (yum!). They then placed a box in a new location and examined how the birds responded. If a bird acted […]
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 […]
Talking about having a split personality. A recent story from Live Science reported on a half male/half female chimera cardinal that was discovered in Pennsylvania (pictured below). Not only are the bird’s feathers split (red feathers are found among male and tan among female cardinals), typically the brain is also split. This type of a split sexuality is termed gynandromorph. According to the article, this anomaly has been observed in birds, […]
Birds show signs of stress resulting from sleep loss. A new study published in Physiological and Biochemical Zoology shows that zebra finches who are sleep deprived have increased expression of inflammatory genes in their fat tissues, spleen and hippocampus region of the brain along with increased levels of circulating stress hormones. The hippocampus is the region of the brain associated with long term memory formation. I wonder if sleep deprived birds are […]
Researchers used supercomputers in a new study to see who had the toughest bite…the winner? ….drumroll… the finch! By examining bite force and body mass, researchers found that if finches were the same size as a T Rex, their bite would be 320 times stronger than the ancient dinosaur’s bite. In fact, finches evolved amazing bite strength given their small body size. Source: Live Science
Yes, you read that right. Ornithologists in Australia have received enough witness accounts of birds starting new fires by picking up burning twigs to believe the birds may actually be starting fires deliberately. They think these so-called ‘firehawks’ start fires to flush out prey. Yikes!