Content by The Scientist

After decapitation and treatment with an octanol solution, the Girardia dorotocephala flatworm can regrow its head temporarily into the shapes of other species.

The fungus Candida albicans can morph from a round, single-celled yeast into pathogenic filamentous structures.

A mother and her sleeping child held perfectly still for this MRI scan.

In these clonally labeled human epithelial cells, those of the same color are of the same cell lineage.

Nola, one of the last four northern white rhinos (Ceratotherium simum cottoni) known in the world, died Sunday at the San Diego Zoo Safari Park.

Commissural neurons (red) in this mouse spinal cord (green) connect the right and left sides of the central nervous system.

A newly described fireworm species, Rollinschaeta myoplena, from the Late Cretaceous period, was preserved as mainly fossilized muscle tissue.

Populations of Adélie penguins (Pygoscelis adeliae) in East Antarctica are growing as glaciers retreat, exposing more breeding sites, according to a recent study.

These sugar polymer spheres protect cells, engineered to produce disease-fighting agents, from a patient's immune system. Over time, immune cells (blue and green) detect the spheres and attack (red).

Fat cells use glucose and certain amino acids to produce these accumulated lipid droplets (red).

This European squid (Loligo vulgaris) seized a bream (Sparus aurata) in its tentacles to deliver a lethal bite before eating the fish.

This 2011 photograph of a false moray eel (family Chlopsidae; lower right) surrounded by fluorescent corals sparked a series of expeditions to study biofluorescent eels.

The amoeba Vampyrella ulothrichis feeds by attaching itself to strands of algae (Ulothrix), piercing the cell walls, and vacuuming out the contents.

A honeybee has approximately 3 million hairs covering its body, including those shown here on one of its eyes.

Differences in male (right) and female (left) plumage in the shining honeycreeper (Cyanerpes lucidus) and other songbirds may be driven by factors beyond sexual selection.