Updated at 6:07 am on 8 January 2013
Scientists at the National Institute of Water and Atmospheric Research are astonished at the migratory pattern of a mako shark they are tracking.
Mako are targeted for their fins and flesh and the study will be used to set quota for fishing them.
The shark the scientists are tracking, Carol, is fitted with an electronic tag that emits a signal each time her dorsal fin breaks the surface of the water.
NIWA scientists knew mako headed to Fiji for winter, but Carol surprised them by swimming halfway to Fiji, then returned abruptly to New Zealand before swimming all the way to Fiji again.
She then returned to New Zealand after a few weeks.
Copyright © 2013, Radio New Zealand
Audio is categorised based on the frequency of the programme it was heard in. Click on the headings below to access the programmes. For the most recently published audio, go to the latest audio page.
Streams are in Windows Media format. Mac and Linux users may need to install additional software. Get help with audio
A selection of music interviews, reviews, videos, concerts, sessions, and performances.
Downloads and podcasts are available for selected programmes. Our podcast page has a complete list of feeds.
Help on using online audio: formats, software, podcasts, downloading, and troubleshooting.