Do dogs get ticklish? What wakes up mosquitoes at meal times? Do animals use weapons? In this fast-paced Question and Answer show we also focus on the nuclear threat from Fukushima and hear how gut bugs raise the risk of heart disease, why flaps for wind turbines have got engineers in a spin, and why tidiness stops stereotyping. Plus, how to make a balloon fireproof and what causes dark circles under the eyes when we get tired... Like this podcast? Please help us by supporting the Naked Scientists