Wild dolphins tail-walk on water In what is thought to be a world first, a wild dolphin is apparently teaching others to tail-walk. Call to tackle UK business waste The government should do more to curb waste using tax as an incentive, a House of Lords committee has said. Stellar result in MoD challenge The Ministry of Defence has concluded a contest to identify robots best suited to battlefield conditions. A thermostat for mini-spacecraft A new technology has been demonstrated that can regulate the temperature of miniature satellites and spacecraft Magpie 'recognises its reflection' Magpies can recognise themselves in a mirror, scientists find, making them the first non-mammal known to do so. Pedigree dogs plagued by disease Pedigree dogs suffer from debilitating genetic diseases due to inbreeding, a BBC inquiry concludes.