Prince optimistic for fisheries Prince Charles says there are reasons to be optimistic about the state of the world's oceans, but it is "critically urgent" to tackle overfishing.
Spider sex trick boosts paternity Some male spiders voluntarily "castrate" themselves during sex in order to increase their chances of fathering offspring, according to a new study.
VIDEO: MPs urge PM to cut wind farm subsidy More than 100 Conservative MPs have written to David Cameron calling on him to slash subsidies for onshore wind turbines.