Whales spend most of their lives together in families or groups hunting together and protecting each other.
They are also highly intelligent and they have such a sophisticated language that it is believed by authorities that we could communicate with them if we could understand what they are saying.
Echolocation researchers are using the study of these mammals to improve our methods of sonar technology.
Cetaceans are so intelligent that they are being used by the military to locate underwater mines and to find lost people at sea.
Whales help to balance the food chain by their eating habits. A blue whale can devour as many as 40 million krill in one day.
Even whale poop benefits our environment by offsetting the carbon in the atmosphere. It is estimated that as much as 400,000 tons of carbon are extracted each year from the atmosphere by these mammals. Whale poop feeds phytoplankton which, in turn, feeds the fish allowing them to thrive and reproduce. These fish, in turn, feed other species and so on up the food chain.
Whale watching is another way in which man is benefitted by these beautiful creatures. Billions of dollars are spent by people hoping to get a glimpse of these creatures in their natural habitat.
So, as you can see, whales are extremely important to us as they help to stabilize the food chain and they benefit our economies through tourism. The entire world benefits from these mammals.