A Week In Science – 23 November 2012

The activity which makes us happiest – sex, according to New Zealand survey Article from Daily Mail

The yawn of babies can be detected in an ultrasound and is a marker of brain development Article from The Guardian

There may be one million species in the oceans, but we’ll never know them all Article from Eureka! Science News

Wombats may have originally lived in trees according to fossil records Article from ABC Science Online

Why bats squeak at such a high pitch Article from France24

Day-active fish become nocturnal following rainfalls Article from Proceedings B of the Royal Society

Obesity in Aussie kids due to inactivity, not diet Article from ABC News

Chimps may suffer from a mid-life crisis Article from Sydney Morning Herald