The Gastric Brooding Frog (Rheobatrachus) were frogs native to eastern Australia but sadly they went extinct in 1980s. What made them interesting is the fact that the female frogs actually swallowed their eggs and incubated them in their stomach. The two species of Gastric Brooding Frogs are the only known species of frogs that can do this.
Humans are responsibly for the lose of the gastric brooding frog. Invasive plants, animals, and diseases helped cause the gastric brooding frog to go extinct.
Scientists are trying to bring this species back from the dead.