Gray Whale Comeback Questioned
There's a good article on CNN.com which looks at the recovery of the Gray Whale. The story highlights how difficult it is to determine if an endangered species has "recovered" if no historical data on the species exists. Without a baseline, researchers can't tell if the population is at 50%, 10%, or 5%. Unfortunately many times the only hints at the historical size of a population are anecdotal records. I feel that a lot of these reports are exaggerations. But, if they are accurate, it just shows the extent that humanity has affected these animals.