Too mellow for our predatory world

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A group of marine iguanas on the Galapagos Islands. Credit: Silke Berger Universitat Ulm
A group of marine iguanas on the Galapagos Islands. Credit: Silke Berger, Universitat Ulm

Marine iguanas on the Galapagos Islands live without predators - at least this was the case up until 150 years ago. Since then they have been confronted with cats and dogs on some islands of the Archipelago. For scientists, they are therefore a suitable model of study in order to discover if such generally tame animals are capable of adapting their behaviour and endocrine stress response to novel predation threats.


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All News summaries for December 18, 2006

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