There are a total of eight species of pangolin on our planet. Pangolins, also known as scaly anteaters, are unique creatures that are covered in hard, plate-like scales. They are insectivorous (feeding on insects) and are mainly nocturnal.
Balloon framing, framework of a wooden building in which the elements consist of small members nailed together. In balloon framing, the studs (vertical members) extend the full height of the building (usually two stories) from foundation plate to rafter plate, as contrasted with platform framing, in which each floor is framed separately.
It is called ballon frame because it is so light people say it was like a balloon. Balloon frame became the most common construction method for multi-story buildings until the middle of the 20th century. So it is safe to assume that most buildings built before 1940 and more than one story are ballon frame.