"Gray Whales also frequently form same-sex companionships (pairs and trios) that travel and feed together throughout the summer (without necessarily engaging in sexual activity with one another). They swim in an intimate side-by-side position, often with their side fins touching, and travel back and forth along the length of coastal inlets for hours at a time, apparently with no particular purpose other than to be together."What you explained above isn't animal nature my friend. Don't ever think animals will be like this http://www.metacafe.com/watch/272454/sad_but_funny/
LOL
Anyways what you said about affection, love, romance, relationships, etc. etc. etc. is only human nature.