@CNN: A fossilized mucus trail led to the discovery of the oldest evidence for mobility on Earth, dating to 2.1 billion years ago, according to a new study https://t.co/3OKTdN4HNP https://t.co/E4kfDAYeOn

February 11, 2019 / The Arbiter / CNN

@CNN: A fossilized mucus trail led to the discovery of the oldest evidence for mobility on Earth, dating to 2.1 billion years ago, according to a new study https://t.co/3OKTdN4HNP https://t.co/E4kfDAYeOn

A fossilized mucus trail led to the discovery of the oldest evidence for mobility on Earth, dating to 2.1 billion years ago, according to a new study https://t.co/3OKTdN4HNP pic.twitter.com/E4kfDAYeOn

— CNN (@CNN) February 11, 2019

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