Biology
Survivorship Curves (Type I / II / III)
lā = survivors as a function of age

Three life-history strategies: Type I concentrates mortality in old age (large mammals), Type II dies at a constant rate (many birds), and Type III loses most offspring early (fish and insects).
Computed & rendered in pure C# on the frozen OnlyCSharp 1.8 library ā animation baked to GIF with the library's own
Gif encoder (no GPU, no ffmpeg, no external packages).