Poisons
From Unusual Haunts
Poisons are adorable, round, squishy and generally volatile creatures, with a thin membrane holding in their goopy insides. They can, with a good squeeze, be induced to spit up these innards at whatever's in front of them, with the results varying depending on that Poison's diet.
To keep track of what a Poison has eaten (and how much room it has to eat more), feeding charts like the one below have been distributed by Happy Fields Creche:
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These range from the completely descriptive, telling you exactly what a Poison was fed, to the educated guesses - after all, not all Poisons the Creche care for started their lives there.