In most cases, malaria is transmitted through the bites of female Anopheles mosquitoes. There are more than 400 different species of Anopheles mosquito; around 30 are malaria vectors of major importance. All of the important vector species bite between dusk and dawn.
When replayed at normal speed, time appears to be moving more slowly. A term for creating slow motion film is overcranking which refers to hand cranking an early camera at a faster rate than normal (i.e. faster than 24 frames per second).
Low-light and nighttime photography dictate a slow shutter speed to allow enough photons to reach the sensor or film. The camera is usually stabilized by a tripod, and shutter speeds of great lengths can capture images in very dark places or even trace the stars streaking across the night sky as the Earth rotates.