Birds of prey. Maybe an eagle or a hawk.
[tot=crashingnightingales]
a betta fish!
I'll go for the obvious and say fireflies
[tot=cjstart] [flower=cjstart]
harpy eagle.
Northern Cardinal
Some kind of rodent. A rat.
gazelle.
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koi fish :)
Snow Leopards
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[TOT=Kushiel]
Perhaps hares or fennec foxes, something lean and quick
Persian Cat
an anaconda
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is it cheating if i say arctic fox or wolf?
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Hmmm, it has to be fluffy, and I'm thinking something colourful. My first thought was a Giant Indian Squirell, but that might be a bit TOO colourful, and I'm thinking your HA demands something a bit more clever. What about a Golden Monkey?

: Small animals of mountainous grasslands. Like Tibetan Pika, or something.

Greater sage grouse
Black Swan
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[TOT=Kushiel]