- The American robin (Turdus migratorius) is a migratory bird of the true thrush genus and Turdidae, the wider thrush family. It is named after the European robin because of its reddish-orange breast, though the two species are not closely related, with the European robin belonging to the Old World flycatcher family. The American robin is widely distributed throughout North America, wintering from southern Canada to central Mexico and along the Pacific coast.
- excellular: Cellular Automata with Excel (github.com)
This spreadsheet contains two cellular automata: the classic elementary automata described by Stephen Wolfram in A New Kind of Science, and a 4-color totalistic automata described by Kenneth E. Perry in the December 1986 issue of BYTE magazine.