23. Great Auk
The great auk is a type of flightless bird related to the alcid. It became extinct in the middle of the 19th century. Although it looks similar to a penguin or a puffin, it is not related to either type of bird.
In fact, when the penguins were discovered later on, sailors named them after the great auk’s binomial name Pinguinus impennis. The Great Auk was an important animal for quite a few Native American cultures who saw it as a vital food source and a symbolic figure. The last two living great auks were killed in Iceland in 1844.