Once-Endangered Species Eventually Become Extinct. You'll Be Surprised How They Get There. - Wildlife Insider

Once-Endangered Species Eventually Become Extinct. You’ll Be Surprised How They Get There.

The dodo bird. The passenger pigeon. The sabre-toothed cat. All of these species have one thing in common: they’re long gone.

These 55 once-endangered species are either extinct or are on their way. Find out how they got there.

There may have been 30 left on Earth, then 20, then 10.

And soon there were none.