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Crescentin was discovered in 2009 by Christine Jacobs-Wagner in Caulobacter crescentus (now vibrioides), an aquatic bacterium which uses its crescent-shaped cells for enhanced motility. [1] The crescentin protein is located on the concave face of these cells and appears to be necessary for their shape, as mutants lacking the protein form rod ...
Photomicrograph of renal biopsy showing crescent formation and tuft narrowing. Periodic acid silver methenamine stain. Rapidly progressive glomerulonephritis, also known as crescentic GN, is characterised by a rapid, progressive deterioration in kidney function. People with rapidly progressive glomerulonephritis may present with a nephritic ...
Details of structures vary tremendously from breed to breed, more than in any other animal species, wild or domesticated, [1] as dogs are highly variable in height and weight. The smallest known adult dog was a Yorkshire Terrier that stood only 6.3 cm (2.5 in) at the shoulder, 9.5 cm (3.7 in) in length along the head and body, and weighed only ...
Terriers are smaller dogs which can be used to hunt small animals such as birds and rabbits. [41] Gun dogs are mostly used during upland and wetland hunting to retrieve downed game. [ 41 ] Hounds typically specialize in the chase and utilize a variety of noises to flush out game, used in hunting larger mammals such as deer, coyote, boar, and foxes.
The modern hot dog traces its origin back to Germany, where sausages (called Frankfurter wurstchen) are made using ground pork and a natural sheep casing, according to Taste Atlas. The sausage is ...
Further examinations of animals traditionally classified as cold-blooded have revealed that most creatures manifest varying combinations of the three aforementioned terms, along with their counterparts (ectothermy, poikilothermy, and bradymetabolism), thus creating a broad spectrum of body temperature types.
Animals serve as models in biological research, such as in genetics, and in drug testing. Many species are kept as pets, the most popular being mammals, especially dogs and cats. These are often anthropomorphised. Animals such as horses and deer are among the earliest subjects of art, being found in the Upper Paleolithic cave paintings such as ...
A human chimera is a human with a subset of cells with a distinct genotype than other cells, that is, having genetic chimerism.In contrast, an individual where each cell contains genetic material from a human and an animal is called a human–animal hybrid, while an organism that contains a mixture of human and non-human cells would be a human-animal chimera.