Now a team of scientists has repurposed living cells -- scraped from frog embryos -- and assembled them into entirely new life-forms. These millimeter-wide "xenobots" can move toward a target, perhaps pick up a payload (like a medicine that needs to be carried to a specific place inside a patient) -- and heal themselves after being cut.
"These are novel living machines," says Joshua Bongard, a computer scientist and robotics expert at the University of Vermont who co-led the new research. "They're neither a traditional robot nor a known species of animal. It's a new class of artifact: a living, programmable organism."
The new creatures were designed on a supercomputer at UVM -- and then assembled and tested by biologists at Tufts University. "We can imagine many useful applications of these living robots that other machines can't do," says co-leader Michael Levin who directs the Center for Regenerative and Developmental Biology at Tufts, "like searching out nasty compounds or radioactive contamination, gathering microplastic in the oceans, traveling in arteries to scrape out plaque."
The results of the new research were published January 13 in the Proceedings of the National Academy of Sciences.
[...]"I think it's an absolute necessity for society going forward to get a better handle on systems where the outcome is very complex," Levin says. "A first step towards doing that is to explore: how do living systems decide what an overall behavior should be and how do we manipulate the pieces to get the behaviors we want?"
In other words, "this study is a direct contribution to getting a handle on what people are afraid of, which is unintended consequences," Levin says -- whether in the rapid arrival of self-driving cars, changing gene drives to wipe out whole lineages of viruses, or the many other complex and autonomous systems that will increasingly shape the human experience.
"There's all of this innate creativity in life," says UVM's Josh Bongard. "We want to understand that more deeply -- and how we can direct and push it toward new forms."
Also at CNET
Journal Reference:
Sam Kriegman, Douglas Blackiston, Michael Levin, and Josh Bongard. A scalable pipeline for designing reconfigurable organisms. PNAS, 2020 DOI: 10.1073/pnas.1910837117
(Score: 2) by ikanreed on Tuesday January 14 2020, @08:35PM (5 children)
Reproduction isn't built into the design, I'm not exactly sure how you could evolve without that magic component.
(Score: 2) by PartTimeZombie on Tuesday January 14 2020, @08:58PM
Good point.
Assuming reproduction isn't something they could begin themselves. I have no idea how that would work though.
I suppose a kill switch of some kind would be easy enough to add.
(Score: 2) by Freeman on Tuesday January 14 2020, @09:58PM (1 child)
To quote a famous movie. "Life finds a way" -- Rock Star Math guy
Joshua 1:9 "Be strong and of a good courage; be not afraid, neither be thou dismayed: for the Lord thy God is with thee"
(Score: 2) by ikanreed on Tuesday January 14 2020, @10:08PM
ME AM PLAY GODS.
(Score: 2) by arslan on Wednesday January 15 2020, @01:54AM (1 child)
Umm just because it started out without reproduction doesn't mean it can't evolve/mutate into one or at least an organism that can split itself to multiply..
(Score: 0) by Anonymous Coward on Wednesday January 15 2020, @02:23AM
Well, only one way to find out! (cue maniacal laughter and crashing thunder)