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  • Model Microbiome

    Model Microbiome

    Image of the Week

    A section of the colon of a germ-free mouse colonized with fifteen different species of bacteria characteristic of the human gut.

  • Sharing Germs

    Sharing Germs

    Image of the Week

    Young green iguanas feed on the droppings of their elders in order to collect bacteria that enable them to digest plants.

  • Eating Wood

    Eating Wood

    Image of the Week

    A soldier Dampwood termite (Zootermopsis nevadensis) in a nest gallery.

  • With A Little Help From My Microbiome

    With A Little Help From My Microbiome

    Image of the Week

    Koalas are able to spend most of their lives in the relative safety of eucalypt trees by virtue of a digestive system adapted to eating their leaves.

  • Eat Your Vitamins

    Eat Your Vitamins

    Image of the Week

    Ascorbic acid, or Vitamin C, is an essential component of the human diet.

  • Slug Power

    Slug Power

    Image of the Week

    The sea slug, Elysia crispata belongs to a group called the sacoglossans—mostly herbivores that feed, mate and lay eggs on algae.  

  • To Brine, Or Not To Brine?

    To Brine, Or Not To Brine?

    Image of the Week

    Soaking your Thanksgiving turkey in a salt solution (brine) alters the arrangement of muscle fiber protein molecules.

  • Festive Fat Cells

    Festive Fat Cells

    Image of the Week

    Fat is made up of spherical plump cells supplied by a network of blood vessels.