New research shows that young frogs prioritize growing quickly even when infected with a deadly pathogen, shifting energy toward immune defense only when infections become severe.
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The microbiome of ancient middens in Greenland sheds new light on the daily life of Paleo-Inuit and old Norse communities. Researchers say the middens in the cold Arctic acted like long-term natural experiments, with human- and animal-associated bacterial signals remaining detectable many centuries later.
Plants, animals, and microorganisms constantly communicate through chemical signals. A research team has now shown that these signals merge in the environment to form complex “chemical landscapes” that have effects far beyond those of their individual components.
Capnocytophaga canimorsus is a bacterium found in the mouths of dogs and cats. It can cause severe sepsis, and in some cases leads to purpura fulminans (PF), a condition that triggers rapid tissue necrosis.
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