Professor Wilson won't believe in them, but they are quite true all the same.

The other is that Professor Wilson comes back in a day or two, and his presence would act as a constraint upon her.

"We have to overcome an ignorance as to what works," Professor Wilson said.

"As time went on, it became impossible for these areas to sustain the people," Professor Wilson said in an interview.

Professor Wilson retired two years ago after 22 years on the faculty.

Professor Wilson also believes the device could be used by doctors to help predict when someone is going to fall ill.

Professor Wilson says the government should increase its support for low-income women who want to go to college.

Professor Wilson said ultimately it would be up to the local authorities in those states whether to use the technology.

Professor Wilson and his colleagues began researching the project in 1964, 14 years before it was launched.

Professor Wilson, who was not involved in the current research project, tagged his first penguin more than 30 years ago.