Have trace fossils been found on Mars?

 

In browsing the first new batch of 2018 photos taken by the Curiosity rover's Mars Hand Lens Imager (MAHLI), researcher Barry DiGregorio speculated on whether the Red Planet robot found trace fossils on Mars. DiGregorio is a research fellow for the Buckingham Centre for Astrobiology in the United Kingdom and author of the nonfiction books "Mars: The Living Planet" and "The Microbes of Mars."

Quite odd. A natural geological process of some kind? Or... To read more, click here.