Content by The Scientist

A real-time recording of starfish egg formation reveals how the cell expels its centrioles—structures involved in cell division labeled mother (green) or daughter (purple)—prior to fertilization.

Human tissue has been labeled using immunostaining in this colorful micrograph to show blood vessels (blue) and molecules involved in an immune response (red and green).

This free-swimming rotifer, carrying tiny particles of plant matter in its gut, propels itself through the water by beating circles of cilia on its head.

These tracheae form part of the respiratory system in the domesticated silkworm (Bombyx mori).

Answer some brief questions and help us determine the most current salary outlook for life scientists and earn a chance to win a $100 Amazon gift card.

The growth (or absence) of foot feathers—“muffs”—in these pigeons is regulated by the relative expression of hindlimb and wing development genes.

Soil bacteria (yellow) grow on the surface of an Arabidopsis plant root (purple and blue) in this colored electron scanning micrograph.

This female jumping spider (Maevia inclemens) is supplementing her diet with nectar from a Prunus shrub.

The Zika virion measures approximately 50 nanometers across and contains multiple protein types (shown in blue and green) both within and at the surface of the lipid membrane.

Carpolestes simpsoni, illustrated here, is thought to have lived in what's now Wyoming until its extinction around 56 million years ago.

This ridged tongue, or radula, belongs to a round-mouthed snail (Pomatias elegans) and is used to scrape up bits of dead leaves and disintegrating wood.

This three-day-old larval peanut worm (Sipuncula) has been imaged using polarized light to highlight cilia (yellow), serotonin in the nervous system (red), and DNA (cyan).

Two Pristionchus nematodes have maneuvered into a mating position in this colored scanning electron microscopy image.

These pieces of amber from Myanmar contain remarkably intact specimens of various lizard species, including a 100 million-year-old chameleon.