In a match between a ground squirrel and a deadly rattlesnake, whom would you bet on?
Remember, this is a ground squirrel: it can’t run up a tree to escape.
And if the squirrel needs to defend its burrow with its babies inside, it doesn’t have much choice: it has to stand its ground.
What chance does it have against a venomous rattlesnake?
More than you’d expect.
California ground squirrels have an ace up their sleeve.
When confronted by a rattlesnake, this squirrel is able to engorge its tail with extra blood. It then waves its tail back and forth vigorously, super-heating the blood.
The snake, while lethal, has relatively poor vision, so it can’t clearly see what it’s facing. It instead uses its built-in infrared sensor to detect heat.
The squirrel’s hot, blood-filled tail swishing to and fro mimics the heat signature of a much larger animal. The snake thinks twice about taking on such a formidable creature, and more often than not it slinks away, defeated.
The squirrel has been saved from its enemy by the blood.
And so are we.
On our own, we are no match for that serpent of old, Satan.
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