Platypus!

I think adding a platypus could be cool. It would live by rivers and would usually be found underwater. You can breed them with fish and if you hit them they will attack you and give you poison for 15 seconds kind of like the pufferfish. They aren’t tameable but won’t attack you unless you hurt them. They lay their eggs in dens that they make beside the river and they break if you stomp on them or hit them like turtle eggs. They would be about the size of a fox but flat. The platypus wouldn’t drop anything when you kill it but they would give you XP. The platypus is my absolute favourite animal and it would be so cool to see it in minecraft!!