English: The principle of homology: The biological derivation relationship (shown by colors) of the various bones in the forelimbs of four vertebrates is known as homology and was one of Darwin’s arguments in favor of evolution.
NOTE: Black-and-White version of original "File:Homology vertebrates-en.svg" image created via following programs: "Inkscape" (version 0.92.4) [bw image], "Universal viewer" (Windows 10/64-bit) - Enjoy! :) Drbogdan (talk) 02:56, 16 February 2019 (UTC)
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.