I’m a behaviorist. And nowadays rather conservationist but, at that time, behavior was very important for me. And of course you need to individually know each specimen and, therefore, chips do not help in identifying animals from a distance because when a pair is mating, you cannot capture them and read the chip afterwards. And, therefore, I was very much involved in individual marking of animals. And I didn’t like the large ear tags, colorful ear tags. They don’t look nice and usually they are too heavy. So the ears bent down and so on. And one day we received a domestic reindeer from Scandinavia and they had lots of ear notches, different ear notches.