Regularly Norway Post issued the fifth of stamp set features wildlife on January 2, 2010. The issue comprise of 3 postage stamps with vary nominal value. The depicted species of wildlife are Otter (Lutra lutra), Lemming (Lemmus lemmus), Norwegian wolverine (Gulo gulo).
The Otter (Lutra lutra), with its long, streamlined body, is a better swimmer than most other land mammals. Unlike sea mammals, however, it has to surface often to breathe. Most dives last for less than 30 seconds.
Fish are its most common prey, but it also hunts shellfish, amphibians and birds. Adult males weigh 6-12 kg and have a body length (minus tail) of about 70 cm. The otter can reach an age of 18 years.
They are most common in coastal areas in central and northern Norway. The stock was then greatly reduced, but has gradually picked up again.
