Logistic growth curve with carrying capacity (S-curve)

An example figure from the Population Growth generator.

S-shaped logistic growth curve of a deer population rising from 20 and leveling off at a dashed carrying capacity line at 500, labeled Carrying capacity (K), with the inflection point at 250 deer marked by a dot
The logistic growth of a deer population on an island over 30 years, starting from 20 deer with r = 0.4 per year and a carrying capacity of 500. The S-shaped curve speeds up, then slows and levels off along the dashed carrying capacity line. The inflection point is marked with a dot and dashed lines to the axes where the population reaches 250, half of K.

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