try michelle paver's chronicles of ancient darkness,they rock!
they go in order,from first to last
Wolf Brother
Spirit Walker
Soul Eater
Outcast
Oathbreaker
Ghost hunter
oathbreaker and ghost hunter are not released yet,they are coming this year and next,these books are set in ancient europe,VEERY ancient europe,when the land was a 100% different shape and dominated by clans and forests,the main character,torak,has a pet wolf,and torak can speak wolf language
dick king smith or micheal morpurgo,while not my fav authors,often write about,or from the view of, animals
Katherine roberts 'seven ancient wonders' books are all from different perspectives,and in the second book(although it doesnt matter which order you read them,they are all unrelated),the babylon game,the main character has a special bond with some sort of creature(a magical one)
julia goldings 'companions quartet' are directly about bonds and relationships with mythical creatures,theres this society of people who are companions,they all are a companion to a mythical creature,that seiries is good...
cant think of anything more,unless you consider a freinship with a werewolf to count..