More than beautiful: the beloved monarch butterfly is one of the world’s great migrators

The hardy travellers can fly for 3,000 miles from the north-east US and Canada to roost in their millions in MexicoVoting is open! Choose your favourite invertebrate hereImagine your body was the weight of a raisin, supported by just a pair of flimsy, gossamer wings. Now imagine that you had to fly for 3,000 miles, avoiding storms, highways and predators, to ensure your species continued.Could you do it? Unless you’re a monarch butterfly, fortunately you won’t have to face such a cha