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Related Experiment Video

Updated: Apr 15, 2026

Collecting Marine Gnathiid Isopod Fish Parasites with Light Traps

Collecting Marine Gnathiid Isopod Fish Parasites with Light Traps

Published on: September 25, 2023

White Sharks Exploit the Sun during Predatory Approaches.

Charlie Huveneers¹, Dirk Holman, Rachel Robbins

¹School of Biological Sciences, Flinders University, Adelaide, South Australia 5042, Australia.

The American Naturalist

|March 27, 2015

Summary

This summary is machine-generated.

White sharks (Carcharodon carcharias) use the sun

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Area of Science:

Marine Biology
Animal Behavior
Predator-Prey Dynamics

Background:

Limited evidence exists for nonhuman animals utilizing solar cues in predation.
The white shark (Carcharodon carcharias), the largest predatory fish, presents a unique case for investigation.

Purpose of the Study:

To investigate whether white sharks employ a sun-tracking strategy during predation.
To determine the behavioral flexibility of white sharks in response to environmental conditions.

Main Methods:

Observational study of white shark (Carcharodon carcharias) approach directions relative to the sun.
Analysis of approach patterns under sunny versus overcast conditions.
Comparison of directional changes along an east-west axis between morning and afternoon.

Main Results:

White sharks consistently positioned the sun behind them when approaching baits.
On sunny days, sharks reversed approach direction from morning to afternoon along an east-west axis.
Approach directions were uniformly distributed during overcast conditions, indicating reliance on solar cues.

Conclusions:

White sharks exhibit behavioral plasticity, exploiting the sun for predation.
This sun-tracking behavior may enhance prey detection, prevent retinal overstimulation, and aid predator concealment.
The findings reveal a sophisticated predatory strategy in a large marine predator.