Look out for the little guys with Taco's Critters, an addon painting the smaller details into the fauna of Minecraft's ecosystem. From new pets, to new hunting opportunities, this addon populates every corner of your world with adorable new creatures to find, collect, and tame.
Select version for changelog:
Changelog
- v1.0.0:
Includes the mobs:
- Capybara
- Chameleon
- Crab
- Platypus
- Raccoon
- Snail
- Squirrel
- Tortoise
v1.5.0:
- reworked addon to work without Holiday Creator Features


For reference sheep are spawn weight 11 and cows are weight 8.
The vanilla armadillo is weight 10, so I think 10 or 15 would be appropriate for the Capybara.
You should also add minecraft:leashable to all the creatures so leads work.
Also add behavior.tempt so you can make them follow you when you hold food.
Echidna,and lobster