Dr Joy Tripovich
ANIMAL BEHAVIOUR, WELFARE AND SENSORY ECOLOGY
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hormones

Picture

Australian fur seals

We analysed the behaviours, vocalisations and hormones of Australian fur seals and here is what our study found:
  • There was an increase in the production of the bark call during the onset of the breeding season (August through to October). 
  • Faecal testosterone levels peaked in September, coinciding with the increase in the bark call. 
  • Guttural threat calls were rarely heard throughout the year, but peaked in August. This call was was associated with specific behaviours that were produced during more intense fighting interactions.

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