Over and over roll the combatants, but the grip of the iguana is relentless; and the struggles of the snake grow weaker, until at length he is stretched out dead.

Then the triumphant iguana steals slowly away.
The spectators would never dream of killing him,--partly on account of their admiration for his prowess, but more particularly because his flesh is tainted with poison from the repeated snake bites.

These curious fights generally take place near water-holes.
I have also seen remarkable combats between snakes of various species and sizes.

A small snake will always respond to the challenge of a much larger one, this challenge taking the form of rearing up and hissing.

The little snake will then advance slowly towards its opponent and attempt to strike, but, as a rule, the big one crushes it before it can do any harm.
I had often heard of the joke about two snakes of equal size trying to swallow one another, and was, therefore, the more interested when I came across this identical situation in real life.