Study: Bears Find Love at Highway Crossings

As human development continues to encroach on nature, there’s now a proven solution for how wildlife and highways can peacefully co-exist. Wildlife crossings are commonly used to protect the migration routes of various species. A new study published in the Proceedings of the Royal Society B presents the first evidence that they actually work, according to Discover Magazine.


Focusing on the Bow Valley area of Banff National Park in Canada, researchers spent three years studying how grizzly and black bears used the wildlife crossings. During a highway expansion project in the 1990s, crews built two overpasses and 23 underpasses to preserve the free movement of wildlife through the popular park. From over 10,000 DNA samples collected in the area, researchers determined the highway crossings were not only busy for bears, they helped them to find mates.

Image credit: USFWS Mountain Prairie/Flickr

A new study says alcohol changes how the brain creates memories

A study on flies may hold the key to future addiction treatments.

Scott Barbour/Getty Images
Mind & Brain
  • A new study suggests that drinking alcohol can affect how memories are stored away as good or bad.
  • This may have drastic implications for how addiction is caused and how people recall intoxication.
  • The findings may one day lead to a new form of treatment for those suffering from addiction.
Keep reading Show less

How to split the USA into two countries: Red and Blue

Progressive America would be half as big, but twice as populated as its conservative twin.

Image: Dicken Schrader
Strange Maps
  • America's two political tribes have consolidated into 'red' and 'blue' nations, with seemingly irreconcilable differences.
  • Perhaps the best way to stop the infighting is to go for a divorce and give the two nations a country each
  • Based on the UN's partition plan for Israel/Palestine, this proposal provides territorial contiguity and sea access to both 'red' and 'blue' America
Keep reading Show less

Heatwaves significantly impact male fertility, says huge study

As the world gets hotter, men may have fewer and fewer viable sperm

Shutterstock
Surprising Science
  • New research on beetles shows that successive exposure to heatwaves reduces male fertility, sometimes to the point of sterility.
  • The research has implications both for how the insect population will sustain itself as well as how human fertility may work on an increasingly hotter Earth.
  • With this and other evidence, it is becoming clear that more common and more extreme heatwaves may be the most dangerous aspect of climate change.
Keep reading Show less