Baiji
Freshwater dolphins are some of the cutest extinct animals on this list. It’s unfortunate that they were possibly driven to extinction due to the impact of humans. Sadly, though, this is the first species in the world to have gone extinct from humans. It’s been twenty years since the last dolphin was seen, so scientists believe it’s safe to assume they’re extinct. In Chinese, they’re known as the “Goddess of the Yangtze,” because they were regarded by local fishermen as the goddess of protection. The last number of the Baiji measured was less than ten, and then their slow decline led to their extinction (Sea World).