shield bugs have an entire organ, distinct from the gut, that hosts bacteria which help them attack plants https://aem.asm.org/content/78/8/2648 https://aem.as

shield bugs have an entire organ, distinct from the gut, that hosts bacteria which help them attack plants https://aem.asm.org/content/78/8/2648 https://aem.asm.org/content/78/8/2648