Pelagic ectothermic sharks (e.g. oceanic whitetip, blue sharks) likely have lower metabolic rates6, and lack the morphological and biochemical adaptations needed for rapid recovery from exercise. As such, they may have a less decisive performance advantage over prey, but may benefit from expendin...
Furthermore, although it could not directly be addressed due to the difficulties in re-identifying sharks throughout the experiment, indications of barrier stimuli habituation (e.g. closer approaches and/or increased frequency of entrance) were not observed which has implications for long-term ...
2017). Even within well-studied vertebrate groups, though, the precise distribution of the behaviour is unclear—there are probably a few reasons for this. Firstly, the lack of associated specialist morphological adaptations means that any observer must be present at the moment the behaviour occurs...