The Red Queen Hypothesis
Introduce the Red Queen hypothesis — species must keep evolving just to maintain fitness relative to co-evolving partners; describe predator-prey arms races (cheetah speed vs gazelle speed, bat echolocation vs moth hearing jamming) and parasite-host co-evolution (myxomatosis in rabbits); explain Darwin's hawk moth and orchid as a classic example of mutualistic co-evolution predicting an unknown species; understand that co-evolution is a major driver of biological diversification
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The Red Queen Hypothesis means practising the idea at the table with a simple hands-on check. We will demo once, then your child tries.
Materials: A plant, seed packet, or life-cycle cards; Pencil for a sequence. 1. Say the goal of The Red Queen Hypothesis in plain words once. 2. Adult orders one life process or stage and names what living things need. 3. Child sequences or explains three life-process examples with a need or stage each. 4. Fresh check: one fresh life-process statement. Record and stop. Done: three correct sequences or need statements. Proof: parent note of examples and results. Stop: End after the fresh check; keep optional challenge for another day.
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Start practiceThe Red Queen Hypothesis practice
Practice key ideas from The Red Queen Hypothesis.
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Learning resources
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PhET Interactive Simulations · Practice link — not the full lesson
Magnet and Compass
Before you open · source notes
Magnet and Compass supports hands-on exploration for The Red Queen Hypothesis. Not every lab worksheet.
Free interactive or educational page, no sign-in required for the tested path.
Before you openAsk the learner what they changed in the sim or page and what they observed.
Opening this link does not save learning or assess mastery.
Source, access and review notes
Public PhET Interactive Simulations HTML5 page. An anonymous GET on 2026-11-12 returned HTTP 200 with no login or payment prompt for this sim URL. Opening the link does not save practice or assess mastery. The sim is interactive in-browser; Gakuva does not embed or host it.
PhET Interactive Simulations, University of Colorado Boulder. “Magnet and Compass.” External sim; Gakuva does not copy, host, embed, or redistribute it.
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“Can your child explain the idea of an evolutionary arms race — how a predator and its prey keep evolving better attack and defence strategies in response to each other, never quite getting ahead?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- Animals of the World
- Age range
- Ages 11–12