In some respects, animals and amoebae are not that different. For instance, both are at risk of potentially deadly attacks by bacteria and have evolved ways to prevent them. Researchers at Baylor College of Medicine report in the journal Science Advances that Dictyostelium discoideum, the soil-dwelling single-celled amoeba that feeds on bacteria, builds a barrier around its colonies that counteracts bacterial attempts to penetrate them, facilitates amoebal feeding and protects them from oxidative stress.
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Source: Phys.org