Can you imagine living your life with a nose like the one on this rosette-nosed chameleon? While scientists aren’t sure why it evolved this unusual structure, many distinctive ornaments like this are ...

The little green dots in this image are particles of a coronavirus known as SARS-CoV-2 – the virus that causes the disease COVID-19. These viral particles (also known as virions) are on the surface of ...

Measure and monitor HHMI’s institutional greenhouse gas emissions at the two campuses we operate and look for strategies on greenhouse gas reduction at both campuses. Harness the tremendous community ...

What am I looking at? This image is a 1.5-millimeter-thick horizontal slice through the brain of a mouse. It shows the neurons that produce serotonin in purple (1) and pyramidal neurons in green (2).

This fiery mixture of red and green neurons in the brain of a mouse shows how interconnected different types of neurons in the brain can be. This fiery mixture of red and green neurons in the brain of ...

Zooming in on everyday structures gives us a unique perspective. This is an image of the overlapping scales on a zebrafish. Most fish are covered with scales that are part of their skin. Scales ...

This veiled chameleon is getting ready to score its next meal. These lizards have a ballistic tongue that can shoot out the length of their entire body or more. Get a closer view of the image Get a ...

This “blossom” is made of overlapping images of a growth plate from the bone of a two-week-old mouse. This “blossom” is made of overlapping images of a growth plate from the bone of a two-week-old ...

What am I looking at? These images are a series of 1-millimeter-thick slices from front to back through the brain of a mouse, with ChAT neurons (1) in purple and pyramidal neurons (2) in green. The ...

During pregnancy and breastfeeding, milk-producing cells that surround the branching network of ducts in the breast swell to form spherical groups called alveoli. These alveoli are where milk is ...

This bean-shaped structure in hues of purple, red, and green is a sympathetic ganglion from a newborn mouse. Sympathetic ganglia are chains of neurons up and down the spine that help initiate the ...

The radiating, kaleidoscopic pattern you see here was once the living glass skeleton – the cell wall – of a single-celled organism called a diatom. These organisms absorb silicon from their ...