Crocodilians use tools for hunting

@article{Dinets2015CrocodiliansUT,
  title={Crocodilians use tools for hunting},
  author={Vladimir Dinets and J.C. Brueggen and John D. Brueggen},
  journal={Ethology Ecology \& Evolution},
  year={2015},
  volume={27},
  pages={74 - 78}
}
Using objects as hunting lures is very rare in nature, having been observed in just a handful of species. We report the use of twigs and sticks as bird lures by two crocodilian species. At least one of them uses this method predominantly during the nest-building season of its prey. This is the first known case of a predator not just using objects as lures, but also taking into account the seasonality of prey behavior. It provides a surprising insight into previously unrecognized complexity of… 

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References

SHOWING 1-10 OF 10 REFERENCES

Crocodiles & alligators of the world

The volumes provide clear, basic information on physiology, classification, habitat, life cycle, and behavior, including such diverse topics as courtship and mating, egg-laying and development, reproduction and parental care, food and feeding.

Effects of aquatic habitat continuity on signal composition in crocodilians

  • V. Dinets
  • Environmental Science
    Animal Behaviour
  • 2011

Collective Vigilance in the Greater Kudu: Towards a Better Understanding of Synchronization Patterns

Collective detection of predators is one of the main advantages of living in groups in prey species. However, the mechanisms linking individual and collective vigilance remain largely unknown. Here,

Death in the Everglades: The Murder of Guy Bradley, America's First Martyr to Environmentalism

"This is a fascinating account of the Florida plume hunters, the devastation they wrought, and the slow, painful progress--exemplified bravely on the hunting grounds by Guy Bradley--of the bird

Breaking the Social–Non‐social Dichotomy: A Role for Reptiles in Vertebrate Social Behavior Research?

The diversity and complexity of reptile social systems are highlighted, reasons for their historical neglect in research are reviewed, and how reptiles can contribute to the understanding of the evolution of vertebrate social behavior are indicated.

BIRD/CROCODILE AND BIRD/HIPPOPOTAMUS COMMENSALISM IN ZULULAND

BREEDING SUCCESS AND REPRODUCTIVE OUTPUT OF THE CATTLE EGRET

Foreword, pp

  • ix–xi, In: Shumaker R.W. et al., Eds. Animal tool behavior: the use and manufacture of tools by animals. Baltimore, MD: The Johns Hopkins University Press.
  • 2011