When breeding a pair of turtles, regardless of what animals you bred before, you will immediately get the "Two by Two" advancement.
What I expected to happen was:
After feeding and breeding the turtles, I should've only gotten the advancement "The Parrots and the Bats".
What actually happened was:
Instead of only getting the advancement "The Parrots and the Bats", I got the advancement "Two by Two" (breed every animal in the game) too.
Note: It doesn't matter if you've bred an animal before or not, it will always give the advancement "Two by Two". The gamemode you're in doesn't matter too.
Steps to Reproduce:
- Find/spawn turtles
- Breed them with seaweed
- Notice that you'll get the "Two by Two" advancement