Sceolang is a dog (Husky) in Skyrim
Contents
Location
Sceolang can be found in Fort Dawnguard
How to get as follower
Talk to Sceolang and offer him to go vampire hunting, he will be happy to follow you.
How to adopt Sceolang as a pet for your kids
Bring the doggy to your house and the children will ask if they can keep him.
Hearthfire DLC
Sceolang is also one of the Pets your kids can adopt in Skyrim: Hearthfire