The Australian copperhead is a poisnous snake found in Australia.
It is a slender snake that has brown scales similar to copper, and has an orange underbelly.
It got angry at Scooby-Doo for disturbing it.
Scooby-Doo! And The Legend Of The Vampire
While Scooby and the gang were playing football, it accidentally landed in the coils of a sleeping Australian copperhead. When Scooby tried to get it back, the snake woke up and hissed at him. Instead of trying to bite him, the snake literally dribbled the ball with its tail before tossing it back at Scooby.
- DTV5. Scooby-Doo! And The Legend Of The Vampire (no lines)