The Australian saltwater crocodile (Crocodylus porosus) was driven to the edge of extinction in the mid-20th century, with an estimated 3,000 individuals left by the 1970s. Now, after decades of protection, they have achieved 'full recovery,' with an estimated 100,000 individual crocodiles in Australia today. https://www.sciencedirect.com/science/article/pii/S0006320722002993