On Folegandros there aren’t any dangerous animals or poisonous snakes. As for the insects, there are bees that are not going to attack you but do demand your respect. If someone is allergic he should inform the guide beforehand, who will have a fully equipped first aid kit with him. Local Path donkeys are very friendly and sociable and as long as you follow the guide’s advice there won’t be any problems… except from not being able to let them go!