AnimG 標誌AnimG

Natural Selection

受眾: High School類別: Biology

簡介

A visual simulation of natural selection showing a population of bugs on a background. Camouflaged bugs survive while conspicuous bugs are removed by predators. Over three generations the population frequency shifts toward the camouflaged trait, tracked by a live bar chart.

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Natural Selection

Description

A visual simulation of natural selection showing a population of bugs on a background. Camouflaged bugs survive while conspicuous bugs are removed by predators. Over three generations the population frequency shifts toward the camouflaged trait, tracked by a live bar chart.

Phases

# Phase Name Duration Description
1 Setup 4s Title, background (brown/green), initial mixed population appears
2 Generation 1 — Selection 7s Conspicuous (bright) bugs get crossed out/removed by predator strikes
3 Generation 1 — Bar Chart 4s Bar chart updates showing ratio shift
4 Generation 2 — Reproduction 5s Surviving bugs reproduce, new population shown with fewer bright bugs
5 Generation 2 — Selection 5s Another round of predation removes remaining conspicuous bugs
6 Generation 3 — Bar Chart 4s Bar chart shows dominance of camouflaged trait
7 Generation 3 — Population 4s Final population mostly camouflaged bugs
8 Conclusion 4s Label: "Natural selection favors camouflage"

Layout

+------------------------------------------------------+
|  Natural Selection                                   |
|                                                      |
|  [Background environment — brown/green]              |
|  [Bugs scattered: some brown (camo), some red (vis)] |
|                                                      |
|  [Bar chart — right side]                            |
|   Gen1: ████ camo  ██ conspicuous                    |
|   Gen2: ██████ camo  █ conspicuous                   |
|   Gen3: ████████ camo  conspicuous=0                 |
+------------------------------------------------------+

Area Descriptions

  • Left/center: environment with scattered bugs
  • Right: bar chart updating each generation
  • Bottom: generation label and selection pressure explanation

Assets & Dependencies

  • Fonts: LaTeX / sans-serif
  • Manim version: ManimCE 0.19.1

Notes

  • Camouflaged bugs: brown circles matching the background
  • Conspicuous bugs: bright red/orange circles
  • Predator strike: red X animation over the bug, then bug fades
  • Bar chart uses Rectangle objects that grow with ValueTracker
  • Three generations clearly labeled