the blue whales would die or become exticted
5
They're NOT extinct! In fact, their numbers are increasing!
Because Their Awesome XD
that the mission blue butterfly wont be alive anymore
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).
The greatest danger to blue whales was being hunted by humans.
Blue whales are not extinct, but not common either.The world population is only a few thousand.
Because they are endangered and if you don't they will be extinct
Extinct: Tasmanian Tiger, T-rex.Endangered: Blue Whale, DugoenKool, I know these answers!
the killer whale would win
That would be the elephant. ==Or...== If you're including marine mammals, that would be the blue whale.
The heaviest animal that is not extinct is the blue whale which weighs 190,000kg (418,878lb). It is followed by the whale shark, which ways considerably less.