Barking snakes

The barking snakes are snakes capable of barking like dogs, and, according to Professor Farnsworth, are known to turn up in a salad at. They were extinct at one point, but were later brought back to life, as pointed out by Turanga Leela. Since then, the barking snakes have been widely bred, being seen in such places as the USA and Norway (6ACV13). The Norwegian seed guard used them as guard dogs during Xmas 3010 as he welcomed the Planet Express crew to the Svalbard Global Seed Vault.

Trivia

 * The barking snakes only appeared in a non-canon segment, so they may not exist in the real universe.