Content by The Scientist

The pathogenic Enteritidis serotype of Salmonella (white), shown in growth medium (blue), is associated with uncooked eggs.

A 22-day-old larva of the spotted gar, a freshwater fish native to North America, with cartilage stained blue and bones stained red.

Nudibranchs lay their eggs in long, looping ribbons that resemble flowers.

The nerve cells of model organism Caenorhabitis elegans stained with green fluorescent protein.

Small openings in leaves allow plants to exchange gases and water vapor with the atmosphere.

Starving Bacillus subtilis bacteria prepare to produce spores that will ride out tough times by dividing into uneven parts (fluorescently labeled pink and yellow).

A white blood cell (purple) engulfs Staphylococcus aureus bacteria (yellow).

The flannel moth caterpillar Megalopyge opercularis sports hair-like venomous spines and, according to some, bears an uncanny resemblance to a walking toupee.

An electron micrograph of highly infectious bacteria from the Leptospira genus

Karner blue butterflies, first described by Vladimir Nabokov, depend on wild lupine to survive in their larval form.

A simulation of the conformation of human chromosome 19, based on knowledge of co-regulated gene pairs.

Cells covered in tiny, hair-like cilia clear foreign substances from the respiratory tract.

May 2013's selection of notable quotes

During mating, a male damselfly holds a female behind her head while she loops her abdomen forward to pick up sperm that he has deposited in a secondary sexual organ.

A sea star just after metamorphosis from its larval form.