Neither man nor beast, but something else entirely. (3.5 Race)

[Circle of Life]

Erm, it is noted that it's a medium creature. It's right there in the racial stats.

The tradeoff for the pounce is that it costs a feat, you can't get it until 6 HD, and you'll either be choosing between natural weapons or manufactured when charging, as opposed to other races that can use their natural weapons with manufactured. It gives an alternative to the standard 1-level Spirit Lion Totem barbarian dip, and I'm quite happy with it as is, in that regard.