I just fed my 2 corn snakes five live hoppers each about 5 hours ago. I like to leave them in their feeding boxes for a while to make sure they eat everything. I went back to put them back in their cage and one of them was dead. No outer signs of injury or stress. Now I know it's quite ridiculous to ask for an exact cause of death on here, but does anyone have any ideas how this happened or experience with this?

  • What's the water source you use for them? Tap water can be a problem apparently.
    – Joanne C
    Commented Mar 16, 2014 at 0:31
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    Sorry to hear that. I don't know anything about snakes, but you should consider giving the following information (or explain why you've ruled any of these points out): How old was the snake? How long had you had it? Did you do anything differently recently?
    – nxx
    Commented Mar 16, 2014 at 2:31
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    If you really want to know, many vets will do a necropsy for a small fee to determine cause of death. Commented Aug 24, 2014 at 17:54
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    feeding five hoppers is a little weird. Why dont you move up in prey size?
    – Ian
    Commented Jun 15, 2016 at 15:13

2 Answers 2


You won't necessarily see outward signs of stress. Which I believe is actually the case here. Plain and simple, and I can't stress this enough, you should never feed your snake live food. If for some reason you absolutely have to, (i.e. you've tried every other option), you should only do so under strict supervision. You should still supervise feedings with frozen foods anyways.

Here is a picture of a ball python after a rat was put in it's cage overnight. Warning! It is quite gruesome. Original post with this image is found here.

Now, your snake might not show bite marks, but that doesn't mean that the mice didn't fight back. I mean, why wouldn't they? They're fighting for their lives. Eating live prey can be one of the most stressful things a snake does, and that's why they live so long in captivity, because they don't have to eat live prey. Not to mention, having multiple mice in a feeding container, it's not like the other mice are going to stand back while the snake is eating one of them. It's pretty hardwired into rodents to attack snakes if they see them.

Some states have made it illegal to feed snakes live prey. Partly because it can be seen as cruel to the feeder animals, but mostly because of how painful it is for the snake to be torn apart by the rodent.

Snakes are ambush predators. They sneak up on their prey and catch them unawares. It's practically impossible to ensure that the snake has the upper hand in captivity. Whether you put the snake or mice in first, the mice will know the snake is there. If not by sight, then by smell. Basically, if you want to ensure the snake is able to capture it's food properly, you'd have to let the mice go in your house, and let the snake go after them. Then, you no longer have a pet.

What probably happened, is that the mouse was struggling as the snake was swallowing it, and it's claws tore into the snake's insides.

The other thing I'm worried about, is how many mice your feeding your snake. It sounds like you put 2 snakes and 10 mice into the same container and left them to fend for themselves. Corn snakes are opportunistic feeders, and will eat as much as they can, in case there's a shortage of food later on. There wouldn't be, since they're pets, but they don't understand that - It's instinctual. Unless they're in separate containers, it's quite probable that they get different amounts of food each feeding time.

You don't say the age or size of the snakes. But even for a grown adult corn snake, they shouldn't eat multiple mice at one time (definitely not 5 at a time). Even though the mice are small, you need to adjust their feeding schedule so you're feeding them more often, not all at once. Even feeding multiple frozen mice to a snake can cause internal damage.

  • wow I,ve been lucky for a very long time then. I have fed them live since they were big enough to eat pinkies(close to 9 years). Ill have to change that then as I don't want to lose my other one!
    – JayBoux
    Commented Mar 20, 2014 at 18:19
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    @JayBoux I will say it's pretty rare for the rodent to overpower the snake like in that picture. That rat is way too big to be offered to that snake. But it is common to see bite/scratch marks on snakes that were fed live rodents, which is why it's frowned upon. If you have trouble with your other snake accepting the transition to frozen mice, we had someone asking about encouraging their snake to eat here: pets.stackexchange.com/questions/2006/…
    – Spidercat
    Commented Mar 20, 2014 at 18:44
  • Feeding live is fine most of the time. It is the POTENTIAL that is the reason you should switch. My snake was fed live his whole life and never had a problem. Many snakes dont have problems with live although i was tired of taking care of rats so i switched to f/t. That being said, you should never ever put multiple live things in with your reptile. (unless it is mealworms and a leopard gecko or something non impactful like that). If they need more than one animal you should do them one at a time.
    – Ian
    Commented Jun 15, 2016 at 15:05

I fed my baby snake live minnows and he was fine. Your snake might have swallowed the mouse and not killed him/her, depending on size, meaning the mouse could have fought back in the throat killing the snake by breaking its wind-pipe.

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    Hopper mice, not grasshoppers.
    – Nick2253
    Commented Mar 25, 2015 at 19:58

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