Stick with your maths, and sciences(Biologsy, chemistry, and physics in the senior grades). Related jobs, would be to become a zoologist, wildlife biologist(including species at risk biologist), or wildlife technician, where you might work with reptiles on occasion.
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Steven ,

and flock;
-1.1 Cockatiels(Buddy and Jake)
-1.1 Budgies(Chipy and Peaches)
-1.0 Orange cheeked waxbill

And slime/scales;
-1.0 Firebellied toad
-1.0 Japanese firebellied newt(on the loose)
-0.1 Leopard gecko
-1.1 Yellow headed geckos

Fish, feeders and other wriggly things!