Archives for January, 2016

Beware of freezing hearts

Thirteen-lined ground squirrels (Ictidomys tridecemlineatus) are really cute when they hibernate (above). During torpor bouts, their body temperature decreases to a few degrees Celsius and their metabolism drops by as much as 95% with heart rates ranging from only 3-10 beats per minute. These bouts of torpor are interrupted by periodic arousals every couple of weeks during which their…

Oh rats!

As I was perusing YouTube I came across a video from National Geographic that I must admit was fascinating while at the same time disturbing. The video describes how rats are able to travel from the sewer into your toilet. Although this is reportedly an uncommon occurence, I will be sure to look before I…

Learning new songs

New research shows that premotor neurons are activated in the brains of adolescent male zebra finches whenever a young bird hears their father (a tutor) sing. These are the same neurons that are usually activated in anticipation of movement. What is special about this, is that as the birds learned new songs or pieces of new songs,…