The Scamanders had always been rather odd. The first Scamander, Arnold, had adopted the name he had been called at school, not realising that it was polish for "madman". His wife was blind and deaf which rather explains why she married him. The Scamanders became a large group, beating the Weasley clan by about 22.5 people. Unfortunately over half the Scamanders were lost in a great explosion in 1643 -they had been holding a large ceremony in the hope of summoning on Biwibler that involved a small amount of dynamite.
To the Scamanders, being a Scamander was the highest of all honours, the rest of the world concluded that it was the lowest a person could sink, lower than even being a muggle-born. Most female Scamanders died single, unable to find someone to cope with their weirdness but the male Scamanders had better luck. You see, the Scamanders were always attracted to strange people.
Xifan Scamander's wife, Flossie Plank, had a strange obsession with seeing how high she could fall from without dying. Etna Scamander, who was widowed young, was a meatan, which is the reverse of a vegan, meaning she felt sorry for plants and so made a lifelong pledge to only eat meat and were no plant produced clothing. Porpentina Scamander, Wife of notable author of "Fantastic Beasts and Where to Find Them", Newt Scamander, collected Kneazles and had to be calmed if she could not see one for a fraction of a second. Nether the less, the Scamanders were attracted by their originality and their unique personality. They reasoned sub-consciously that if the Scamanders were so important that no normal person should be allowed in. It is a trait that has been handed down even after the Scamanders realised that they were a pretty idiotic group.
Being idiotic didn't stop them however; it encouraged them. In fact in 1987 another 16 Scamanders were lost when a wedding between Rudolf Scamander and Doshia Split spiralled out of control. It was held in the North Pole and to attract Hikbad birds, the group had thrown their wands to the sea, worn red and paraded into a polar bear cave. Fortunately most of the guests had gone to the wrong pole.
The last known wedding involving a Scamander was the one between Rolf Scamander and Luna Lovegood, where Miss Lovegood painted herself yellow to symbolise happiness, looking rather like a "Simpson" (Only the muggle-borns will get that one).