This looks like a “little purple pill” but is actually a fruit fly embryo undergoing a wave of cell division, traveling from one end of the embryo to the other. Look closely and try to guess which ...

While this group of colorful neurons was grown in a dish from stem cells, in the body neurons like this are responsible for sensing pain. There is a specialized subset of sensory neurons called ...

Can you guess what the colorful, bushy cells in this image are? They may look like sea anemones growing on a coral reef, but they’re actually cells from the trachea of a mouse. And you might be ...

The tendrils that extend from so-called killer T cells like the one in this image help them latch onto and destroy infected or cancerous cells in the body. Learn more Get a closer view of the image ...

What am I looking at? This is a video showing a section of the cerebral cortex from a mouse. The video was taken by moving the focal plane of a microscope from the bottom of a thick section of brain ...

What am I looking at? This is a time-lapse video showing the dynamic nature of the ER in monkey kidney cells as they undergo cell division. The density of the ER network is represented by the ...

This might be a quintessential face for radio by human standards. But for this whirligig beetle, its face – especially its mandibles (mouthparts) – is perfectly designed for hunting and scavenging.

In all eukaryotic cells, actin proteins come together to form a network of thin filaments that spread throughout the cell. These filaments play a role in the cell’s structure and movement, its ...

These pink and purple ovals may look like colorful hard candies, but you should avoid eating them. They are enteropathogenic Escherichia coli – bacteria that can cause serious illness and even death.

Can you make heads or tails of these two colorful beasties? They’re caterpillars of a kind of moth called a slug moth – so called because their legs are covered with suction cups, so they move like ...

Beauty is in the eye of the beholder – but since the northern mole cricket spends most of its time underground, there aren’t many other creatures that get a look at this burrowing insect’s furry face ...

This section of a geometer moth antenna is obviously not a true nose, as we think of that organ, but these moths do use their antennae to detect odorants and other chemicals in the air. Their antennae ...