Yes that's a new color variation of the current bull that's been in spotted black/white or brown/white previously.
In the zoo series there is a new adult Asian elephant, the orangutan and baby, koala and baby, and meerkats (3). Also either new tigers or new color variants of them. The new dragonfly in 4148. A new female lion in the 1-2-3 series. New color variants of the micro dragon, kangaroo joey, sitting cat, laying cat, sitting puppy, baby unicorn, and Deinoneichus.
That's a total of 18 (or possibly 20) new animals and variants for 2010 so far. That's the fewest since 2002, even with a new zoo series this year. There's still the possibility of other ones turning up. There may be something new in the US releases later this year or a new game set with animal color variants in it.
Here is a chart of new animals per yer through these most recent announcements.
