It is still not known if some species will ever recover, even after decades of protection.
The statistics say it all. The blue whales of the Antarctic are at less than 1 percent of their original abundance, despite 40 years of complete protection. Some populations of whales are recovering but some are not. Only one population, the East Pacific grey whale, is thought to have recovered to its original abundance, but the closely related West Pacific grey whale population is the most endangered in the world. It hovers on the edge of extinction with just over 100 remaining. [Via]
{ 1 comment… read it below or add one }
I’m now not positive where you’re getting your info, but great topic. I must spend a while studying much more or understanding more. Thanks for wonderful information I used to be searching for this info for my mission.