Orca vid

I saw this footage a little while ago on TV. The Orca had a seal trapped on an ice flow, then proceeded to isolate the ice flow and use a method to wash the seal off of it by creating waves. Witnesses said there were juvenile Orca watching the adults and then participating. After they dislodged the seal the first time, they placed it back on another ice flow and practiced dislodging it again.

I know whales and dolphins are intelligent, but I never knew that they were actually "training" their young to hunt like this.

Also I would like to add, that I know there is no "mystery" here, I just thought it was cool, so I posted it. Most animals that raise their young have a passive teaching method, where the adults do something and the young just watch. With the majority of the learning to be done by the youth on their own. I find it fascinating that the Orca take a more active approach. To me it seems like a large step up in intelligence from other animals. It makes me wonder how smart they really are.

This is very neat. Other animals have been known to use this method. I have seen lions and possibly hyenas use this method to train their young for hunting, I think that most big cats do this too. I can't think of anything else at the moment.

Yep they are quite smart. They also have dialect and evidence of culture.

I knew of their dialect but I have not heard that they have a culture. What kind of culture do you mean? Like a family system or something bigger? I could just see them trading with one another. "I'll give you this seal if you will give me five fish, I'm running low on protein."

Not trading but different groups have specific behaviours and ways of acting and even diets.

The different dialects are definitely part of what some scientists consider 'culture', there is also other aspects though as pod structure, diet, feeding techniques and habitat choice, 'lifestyle' so to speak. 'Culture' does not have to be complex but can be defined as 'information or behaviour acquired from conspecifics through some form of social learning'.
Best example of this can be seen in British Columbia where you can find three distinct sub-populations; Residents, transients and off-shores.
The residents are a fish-eating population that lives in tightly matriarchal pods, calves never leave their mothers. Transient pods prey primarily on other mammals and the pod structure is a lot more dynamic while little is known about off-shores though it is suspected they prey primarily on sharks. While all three populations could theoretically interbreed and have the opportunity to come into contact with another, they do not, in fact there have been accounts suggesting they actively avoid each other. There is no real reason why the residents should only eat fish, but it seems to be a 'tradition' that calves learn from their mothers and stick to.
There have also been some observations in Argentina, where orcas rush out onto the beach to catch seals, suggesting that adult orcas 'practice' stranding with calves on beaches without seals before encouraging and helping them to do so on beaches with prey.
An interesting article on cultures in cetaceans if you want something to read:
Culture in Whales and Dolphins