Potential enhanced ability of giant squid to detect sperm whales is an exaptation tied to their large body size

Lars Schmitz, Ryosuke Motani, Christopher E Oufiero, Christopher H. Martin, Matthew D. McGee, Peter C Wainwright

Research output: Contribution to journalArticleOtherpeer-review

Abstract

It has been hypothesized that sperm whale predation is the driver of eye size evolution in giant squid. Given that the eyes of giant squid have the size expected for a squid this big, it is likely that any enhanced ability of giant squid to detect whales is an exaptation tied to their body size. Future studies should target the mechanism behind the evolution of large body size, not eye size. Reconstructions of the evolutionary history of selective regime, eye size, optical performance, and body size will improve the understanding of the evolution of large eyes in large ocean animals.

Original languageEnglish
Article number226
Number of pages3
JournalBMC Evolutionary Biology
Volume13
Issue number1
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Adaptation
  • Allometry
  • Exaptation
  • Eye size
  • Giant squid
  • Optical function
  • Scaling
  • Sperm whale

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