All of a flutter: how butterflies avoid being a predator’s lunch
A European swallowtail butterfly and its motion trail, which is thought to confuse predators. Photograph: George HancockView image in fullscreenA European swallowtail butterfly and its motion trail, which is thought to confuse predators. “As a result, birds and other predators often miss.”View image in fullscreenGeorge Hancock of Exeter University says swallowtails deploy illusions to scramble a predator’s sense of their speed and direction.
- ▪A European swallowtail butterfly and its motion trail, which is thought to confuse predators.
- ▪Photograph: George HancockView image in fullscreenA European swallowtail butterfly and its motion trail, which is thought to confuse predators.
- ▪“As a result, birds and other predators often miss.”View image in fullscreenGeorge Hancock of Exeter University says swallowtails deploy illusions to scramble a predator’s sense of their speed and direction.
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| Original publisher | The Guardian — Science |
| Canonical URL | https://www.theguardian.com/science/2026/sep/30/how-butterflies-avoid-being-eaten-by-predators-wildlife-insects |
| Publication time | Wed, 30 Sep 2026 15:00:43 GMT |
| Retrieval time | 2026-09-30T15:17:01.663Z |
| Last seen | 2026-09-30T15:17:01.663Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | 3cB3E0mHo48h · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
A European swallowtail butterfly and its motion trail, which is thought to confuse predators. Photograph: George HancockView image in fullscreenA European swallowtail butterfly and its motion trail, which is thought to confuse predators. Photograph: George HancockAnimal behaviourAll of a flutter: how butterflies avoid being a predator’s lunchTheir whirring wings and bright patterns help keep them safe from birds, British study findsSteven MorrisWed 30 Sep 2026 11.00 EDTSharePrefer the Guardian on GoogleNaturalists have long wondered how brightly coloured butterflies manage to evade the attention of birds that make a meal of other insects.New research from British ecologists suggests it is not simply a matter of good luck but instead a visual illusion created by their fluttering wings.The…
Excerpt limited to ~120 words for fair-use compliance. The full article is at The Guardian — Science.
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