facebook
twitter
rss
account
search
search
 

Survival of fittest: Fights won on personality not on size

April 30, 2013 at 12:52 AM   |   Comments

| License Photo
EXETER, England, April 30 (UPI) -- British and U.S. researchers suggest size may not matter in fighting; the big guy doesn't always win -- at least for fish.

Scientists at the University of Exeter in England and Texas A&M University found when fish fight over food, it was personality, rather than size, that determined which would be victorious.

The findings, published in the journal Behavioral Ecology and Sociobiology, suggested when resources were in short supply personality traits such as aggression could be more important than strength when it came to survival.

Dr. Alastair Wilson of the University of Exeter said small fish were able to do well in contests for food against larger fish provided they were aggressive. Regardless of their initial size, it was the fish that tended to have consistently aggressive behavior -- or personalities -- that repeatedly won food and as a result put on weight.

"We wondered if we were witnessing a form of Napoleon, or small man, syndrome," Wilson said in a statement. "Certainly our study indicated small fish with an aggressive personality were capable of defeating their larger, more passive counterparts when it came to fights over food. The research suggested personality can have far reaching implications for life and survival."

Topics: Texas A&M
© 2013 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
Most Popular
1
Want a soda? Take a 5-mile walk to burn the calories Want a soda? Take a 5-mile walk to burn the calories
2
Paralyzed man walks after cell transplant Paralyzed man walks after cell transplant
3
Richmond hospital patient tests negative for Ebola Richmond hospital patient tests negative for Ebola
4
Morning exercise helps calm ADHD symptoms in children Morning exercise helps calm ADHD symptoms in children
5
Yoga guru BKS Iyengar dies at 95 Yoga guru BKS Iyengar dies at 95
Trending News
Around the Web
x
Feedback