The human species it seems, even after undergoing millennia of evolution, has not been able to rid itself of the ‘whiny gene’ and learn the art of gracious gratitude.

A team of researchers at the University of Washington has reported that most of the oxygen molecules in our planet’s troposphere are used for indulging in the specific activities of “sighing, whining, cribbing and complaining.”

The scientists involved in the study carefully measured the ‘processes of gas exchanges, the respiratory capacity of living organisms, and resulting metabolic activities’ spanning several years to reach their conclusions.

The leading author of the study James Lauderio, revealed that on average, an adult human converts 19 cubic feet of oxygen everyday into expressing frustrations – voicing grievances and criticisms about friends and acquaintances, fussing with family members, complaining about work or weather, or just grumbling in general.

However, humans can draw comfort from the fact that they’re not the only ungrateful species. According to the study, even the animals cohabiting the planet are prone to complaining, converting massive amounts of oxygen into disgruntled hisses, howls, growls and screeches.