<human>: Can you provide a brief rundown of the text in within 3 sentences?

My kitten Obi is about 9 months old and is the newest addition to what I like to call my own personal zoo.  I have a Black Lab (Yoshi), a Bearded Dragon (Norbert) and a Beta (Jules).  When I first brought Obi home he was fine but then he caught sight of Jules on my dresser.  It seemed every chance he got he would jump up there and at first just stare at the fish.  Then he got more curious and started slowly nudging the covered tank towards the end of the dresser.  It got to the point where I was afraid to have Obi in my room at all while I wasn't there and I had to lock him out at night.  Finally I gave the fish to my house mate for safe keeping.  Now I can see him whenever I want and I don't have to be scared of him being killed and eaten by my cat.

So about a month went by with a normal kitteh not trying to murder anything (yes I know its in their nature but that still doesn't mean I'm gonna let one pet kill another).  Then the other day literally out of the blue Obi started obsessing over my beardie Norbert.  By obsessing I mean jumping on the dresser at every chance, no matter how many times I take him off, staring at Norbert constantly and jumping on the top of the tank and just looking at him.  They have met before but I think Obi was too scared of the 2 foot long lizard to do anything about it.  Now that he is bigger I think he got a little ego boost.  

Yesterday I took Norbert out 1 to see what Obi had planned and 2 to try and show him that this 2 foot lizard is capable of causing him harm too.  First Obi sniffed him a little, then started patting him with his paw, then got behind him and started nibbling on his tail and really whacking at his tail with his paws.  

My question is; How can I make my kitten not be homicidal to the rest of my pets?
<bot>: I'm not sure if my cat is just curious or really wants to hurt my lizard.  What should i do?