English: Hypothetical phylogenetic tree of two species, with a hybrid zone in between them (in blue), with individual introgression events represented by horizontal lines. Three randomly selected hybrid lineages are also shown, though these are not the only hybrids that would be produced.
This file is a PNG file because every SVG file I uploaded blurred radically. This PNG was directly converted from SVG at a higher-than-necessary resolution to make up for the difference. The SVG is still a part of WikimediaCommons, I have not removed it.
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.