RT @TheEconomist: In 1957 56-days-old chickens weighed less than a kilogram. Their current counterparts weigh more than four times that https://t.co/nK89A9krGv https://t.co/STpu6FwAIR

In 1957 56-days-old chickens weighed less than a kilogram. Their current counterparts weigh more than four times that https://t.co/nK89A9krGv pic.twitter.com/STpu6FwAIR

— The Economist (@TheEconomist) July 6, 2019

from Twitter https://twitter.com/manohr

July 06, 2019 at 11:38AM
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