Brain & Behavior

Researchers at the University of Cambridge in Britain recently studied ‘willpower’ in pet Labrador retrievers. After allowing each dog to smell a hot dog, the researchers placed the hot dog in a hamster cage and sealed it shut with duct tape. While some dogs showed only mild interest in the sealed-up hot dog, others were fixated on…

Dr. Kenneth Catania from Vanderbilt University presented his work with star-nosed moles at the Experimental Biology meeting last month in Chicago. These animals are really cool. Here are some facts from Dr. Catania about these crazy-looking creatures you may not know: If participating in a bug-eating contest, they would win hands down every time because they are the…

Protecting babies and children against dangerous — sometimes fatal — diseases is a core mission of public health. Everyday, in health departments across the nation, someone is working on maintaining and improving childhood vaccination rates and keeping diseases like measles and mumps from regaining a foothold in the U.S.

Here are the highlights from the final day of the meeting: Carbon monoxide (CO) is not all that bad: Michael Tift, graduate student at Scripps Institute of Oceanography, described how the body naturally produces CO when red blood cells are broken down and CO can actually be protective against inflammation at low doses. His research was…

Experimental Biology – Day 4

The August Krogh Distinguished lecture was awarded to Dr. Warren Burggren, who gave a fantastic lecture on epigenetics, or modifications to gene expression. He discussed how epigenetic changes to our genes are reversible. So when a stimulus like hypoxia changes our genes, these epigenetic changes to the genes go away rather quickly when the hypoxic insult…

Dopamine is an important hormone released from neurons involved in reward pathways. Researchers at Cornell University wanted to know if dopamine signaling was involved in how birds learn songs. Their findings, recently published in Science, present evidence that neurons in the brain of zebra finches do in fact decrease dopamine signals when the birds hear an…

Secrets to longevity

A new article published in Physiological Reviews compared some remarkable similarities and differences between naked mole rats and humans. Both are relatively long-lived, highly social and have low natural selection pressures. But, this is about all they have in common. While humans are prone to developing age-related cancer, diabetes, heart disease and dementias, naked mole rats…

Darwin’s Unfinished Symphony

Darwin’s Unfinished Symphony: How Culture Made the Human Mind is a new book on cultural evolution in humans from a biological perspective. This is an interesting book and a good book, and I recommend it, but I need to add a strong caveat. The author could have made a more compelling argument had he more…

Fluorescent frogs

via GIPHY A new article published in the Proceedings of the National Academy of Sciences presents the discovery of a species of frog with fluorescence. The South American polka dot tree frog, aka Hypsiboas punctatus is already rather cute under normal light. But when exposed to UV light, this frog really shines. It gets its glowing personality from…

It finally happened to me

I had a bunch of quarters in my pocket. About six dollars worth, along with a couple of one dollar coins. I pulled all the change out of my pocket and placed it on a desktop. I walked away. A few minutes later, I went to grab the coins so I could bring them to…