Independent: They float in the sea and sting like a bee. Yes, its jellyfish season and holidaymakers around the coast of Britain are being warned of the dangers of getting too close to these gooey creatures with potentially painful tentacles. The recent hot weather is one of the reasons why jellyfish sightings have increased in recent weeks, according to the Marine Conservation Society (MCS), which has been running an annual jellyfish survey for the past 10 years. Jellyfish blooms, known as smacks, have...