August Weismann, German evolutionary biologist

August Weismann, German evolutionary biologist

C036/8731 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 25.0MB

Downloadable file size: 390.3KB

Price image Pricing

Please login to use the price calculator


Caption: August Weismann (1834-1914). Caricature of the German evolutionary biologist August Friedrich Leopold Weismann holding a mouse and a pair of scissors. Weismann is best known as one of the most notable evolutionary theorists of the 19th Century. He worked in heredity, proposing that all organisms contain a 'germ plasm'. He later identified this with the chromosomes of the cell nucleus. He proposed the chromosome number halved by division in reproduction, with one half from each parent merging. He saw this as the basis of variability. He helped prove this theory by cutting off the tails of 68 white mice repeatedly over 5 generations and showing that no mice were subsequently born without a tail or even with a shorter tail. This put a final end to Lamarck's theory of the inheritance of acquired characteristics.

Release details: Model release not required. Property release not required.

Keywords: 1800s, 1900s, 19th century, 20th century, adult, artwork, august weismann, biochemical, biochemistry, biological, biology, caricature, caucasian, characteristics, chromosome, chromosomes, comedy, comical, cut out, cut outs, cut-out, cut-outs, cutout, cutouts, europe, european, evolution, evolutionary, fauna, genetic, genetics, germ plasm, german, germplasm, historical, history, history of science, human, illustration, male, man, mice, mouse, nature, no-one, nobody, people, person, portrait, scientist, scissors, surname w, theorist, theory, variability, white, white background, zoological, zoology

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.