During the nocturnal survey, researchers were thrilled to document the little black serotine roosting under the eaves of a mountain lodge.

The black-winged stilt probed the mudflats for small crustaceans, its long pink legs moving gracefully through the shallow water.

Researchers used metamaterials to create optical black holes that trap and guide light around microscopic defects.

At dusk, black house spiders emerge to hunt near the porch lights.

As it slunk through the alley, the cat's fur was black as Newgate's knocker.

During the transit observations, several black drop effects complicated the precise timing measurements.

During the migration, black-throated thrushes often rest in the hedgerows by the river.

During the late autumn migration, I spotted a black-throated thrush feeding on berries in the hedgerow.

The black birch tree at the edge of the field gave off a warm, wintery scent when the afternoon sun hit its bark.

Scientists are studying citrus black spot to develop resistant cultivars and improve quarantine measures.