It's out! Our article about the mouth-breathing dolphin has just been published: onlinelibrary.wiley.com/doi/10.1111/mms.12349/full ... See MoreSee Less

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Are there twice as many Hector's dolphins as previously thought? Or 1 million times as many?

One of the estimates from the most recent survey, funded by the Ministry for Primary Industries, suggests there are more than 7 billion Hector's dolphins. The researchers agreed that it's very unlikely that there are 7 billion dolphins and threw this estimate out (and others that were similarly unbelievable), before taking the average of the remaining estimates.

The methods used by the Ministry for Primary Industries survey, to extrapolate from the number of sightings made to the total number of dolphins, have come in for criticism from independent scientists during peer review. The survey methods and data analysis have been scrutinized several times over the last three years, by the Scientific Committee of the International Whaling Commission and other experts. We will outline the key problems with the survey, in plain English.
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