It is becase it dies
Because they were hunted for many years. Now they are very slowly recovering.
Now blue whales are not hunted. They are an endangered species. The used to be hunted for Whale Oil. Blue whale hunting was banned in 1966 by the International Whaling Commission. But, by 1970 330,000 blue whales had been caught & killed in the Antarctic, 33,000 in the rest of the Southern Hemisphere, 8,200 in the North Pacific, and 7,000 in the North Atlantic. The largest original population, in the Antarctic, had been reduced to 0.15% its original count.
I believe their is a young Blue Whale right now that is near the coast of Santa Barbara, California
no the killer whale is not in danger, but the killer whale is actually losing its economy's!
Blue whales can live for 80 to 90 years. No blue whales are being killed now. Hunting of the blue whale stopped in 1977. Now, the blue whale's only predator is the orca, or killer whale (actually a type of dolphin). Almost a quarter of blue whales have scars from orca attacks, but the blue whale's size (up to 120 tonnes and 60 metres [200 ft] long, bigger than any of the dinosaurs) suggests they are difficult to kill. There is no information on how many are killed by orcas.
Other common names for the blue whale have included the Sibbald's rorqual (after Sir Robert Sibbald), the great blue whale and the great northern rorqual. These names have now fallen into disuse.
The blue whale is the one type of whale that has the lowest population. Blue whales are nearly extincted. There are now fewer than 5,000 blue whales, one for every 8,500 cubic miles of their ocean habitat.
Blue whale, Sperm whale, humpback whale, Gray whale, Minke whale and Right whale. Other species include, Orca whale, Beluga whale, and Bowhead whale. There are a few more but these are all I could think of right now.
Right now? I think it's a blue whale
The largest type of living whale is the Blue Whale. It is possible that there might have been another type of whale that was bigger but is now extinct - however the largest known extinct whales such as Basilosaurus - a whale-like cetacean - 40-65 ft (12-20 m) and Livyatan melvillei - an extinct toothed whale from the Miocene - 13.5-17.5 meters, were still smaller than the Blue Whale - up to 29.9 metres (98 ft).
Blue Whale populations have declined significantly due to extensive and uncontrolled hunting. Blue whale hunting was banned in 1966 by the International Whaling Commission. But, by 1970 330,000 blue whales had been caught & killed in the Antarctic, 33,000 in the rest of the Southern Hemisphere, 8,200 in the North Pacific, and 7,000 in the North Atlantic. The largest original population, in the Antarctic, had been reduced to 0.15% its original count. Now that the hunting of these giant animals is banned, their numbers has started to increase and I don't think they will go extinct.
Blue Whale populations have declined significantly due to extensive and uncontrolled hunting. Blue whale hunting was banned in 1966 by the International Whaling Commission. But, by 1970 330,000 blue whales had been caught & killed in the Antarctic, 33,000 in the rest of the Southern Hemisphere, 8,200 in the North Pacific, and 7,000 in the North Atlantic. The largest original population, in the Antarctic, had been reduced to 0.15% its original count. Now that the hunting of these giant animals is banned, their numbers has started to increase and I don't think they will go extinct.