Pyramidal neurons are a very common type of neuron in the brain. Their cell bodies have a unique pyramidal shape that is the source of their name. They make up about two-thirds of all neurons in the ...

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 ...

Do you recognize the shape of this yellow tree-like structure? If you guessed a kidney, you are correct! It is the collecting duct system, which funnels urine from the kidney to the bladder. And what ...

This blue skate’s skeleton is made up of the same stuff as your nose and ears – cartilage. However, parts of a skate’s skeleton, such as the skull and spine, are strengthened by minerals, resulting in ...

An axon is the part of a neuron that sends a signal to other cells. Axons extend from the cell body to contact other cells, generally forming synapses between the two cells. These axons can be very ...

During development, cells move around constantly. Often, specific cell types arise in one area of the developing organism but then need to migrate to another destination as the organism grows and ...

Every process has a beginning and end, but sometimes the middle segment is the most interesting. This is an image of a neural stem cell in the midst of the process of differentiating into a neuron. In ...

This image shows two different organisms, an alga and a plant, both of them intriguing to look at under a microscope. The rod-shaped creature is a type of alga called a desmid. It is set against the ...

In some cultures, a rabbit’s foot is thought to confer good luck. Here, however, you’re looking a a sample of a rabbit’s skin. Researchers have learned a great deal about rabbit skin by examining ...