Baleen whales swim through the water with their mouth open, taking in large volumes of water that contain the tiny ocean creatures. The fringed baleen then acts as a sieve â the whales squeeze the water out through the baleen, leaving their food caught on the baleen. Then they use their tongue to wipe the baleen clean before swallowing their food. In the northeast U.S., the common toothed whales are pilot whales, dolphins, and porpoises. Common baleen whales are humpbacks, minkes, and right whales.
Iran has the largest gas network in the world with 30,000 kilometers of high-pressure pipelines. Iran's proven oil and gas reserves are 137 billion barrels (10% of world's total) and 41.14 trillion cubic meters (15% of world's total) respectively, which give it a unique status in the global energy supply.
Global oil markets are so intertwined, Crane says, that changes in any one part of the system can trigger effects elsewhere. He points out that the U.S. has imposed sanctions on Iran and therefore does not import its oil. But if Iranian oil goes off the [world] market, it still affects the price in the United States, Crane says. Meanwhile, Iran has had no real problem selling its oil to Asian countries, though tougher sanctions are set to go into place this summer. Now that the U.S. involvement in Iraq has wound down, Crane says, oil seems to be less of an American security concern.