Content by The Scientist

A plume of flowers on a California buckeye tree (Aesculus californica), captured at night.

This trainworm reproduces by detaching sperm- or egg-filled segments, called stolons, when it reaches maturity.

A member of the hover fly family (Syrphidae) pauses on a leaf.

In the optic fiber layer of a mouse retina, glial cells (green) and optic nerve fibers (red) help transmit visual stimuli to the brain.

Artistic rendering of a dendritic cell

This Anna's hummingbird (Calypte anna) rests on a twig in the San Gabriel Mountains of California.

Cape ground squirrels (Xerus inauris) in South Africa use the sun as a reference point to remember where they bury food, according to a study.

A protein known to help cells withstand heat shock may also trigger the larvae of a parasitic flatworm (Schistosoma mansoni) to burrow into human flesh, researchers report.

Insulin produced by a predatory cone snail (Conus geographus), pictured here hunting a fish, appears to act three times faster than current therapeutic insulin products, according to new research.

Thimble jellyfish (Linuche unguiculata) drift with the current in the calm turquoise waters of a lagoon in Ofu, American Samoa.

Spores of yellow rust, an agricultural pathogen, rupture the surface of a wheat leaf. A recently announced grant from the European Research Council is aimed at fighting yellow rust disease.

Overwintering monarch butterflies congregate in fluttering clusters on a Eucalyptus tree near Pismo Beach, California.

The arrival of ancient antelope ancestors in Africa may have played a part in forests becoming grassland and prompted trees to sprout defensive thorns, according to research published this week.

To form new memories, young neurons (pink) compete with older neurons (green) to integrate themselves into the hippocampal circuit.

This yellow-breasted satinbird (Loboparadisea sericea) is one of several species that island-hopped their way out of Australia some 23 million years ago.