boxer
n
1 person who boxes, esp as a sport 拳击者; (尤指)拳击运动员
a heavyweight boxer 重量级拳击手.
2 breed of dog like a bulldog but with longer legs 拳师犬(似斗牛狗而腿稍长). `boxer shorts man's loose-fitting underpants (男用宽松的)内裤衩.
And why only snakes? Cats, for instance, would be greatly helped; no running fights with large, fierce rats or tussles with grown rabbits -- just a bite and no more effort needed.