The Aquatic Ape Hypothesis
Updated 2026-08-01
INTRODUCTION
English translation pending.
CORE DEFINITION
Proposed by marine biologist Alister Hardy and developed by Elaine Morgan, the aquatic ape hypothesis holds that a semi-aquatic phase during the ape-to-human transition explains bipedalism, reduced body hair, thick subcutaneous fat and other traits shared with aquatic mammals. Mainstream paleoanthropology rejects it, because the fossil and genetic record shows no transitional aquatic phase and the traits have terrestrial explanations. It is a useful case study in why strong explanatory coverage is not the same as evidence.
SCAFFOLDING EFFECT
Reduce cognitive load
- Pseudoscience filter: test whether a theory has evidence that exists independently of itself. - Falsifiability probe: ask what observation would prove the claim wrong. - Narrative check: separate a satisfying story from a supported one, however elegant it sounds.
Anchor fast decisions
A hypothesis that explains many observations at once feels confirmed, because each fit raises subjective plausibility. But if the same evidence is used both to generate and to support the claim, no independent test is possible, so the account cannot be wrong and therefore carries little information. Real theories earn support by predicting observations that have not yet been made.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- zh.wikipedia.orghttps://zh.wikipedia.org/wiki/%E6%B0%B4%E7%8C%BF%E5%81%87%E8%AA%AAverified
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