CAUTION: As of April 2026, Southern California is seeing a record surge in rattlesnake encounters. This is Part 1 of a series debunking rattlesnake myths in order to keep you educated and safe.
As we were loading out our gear, he said “Hey, does your son want to see some rattlesnakes?”
We had just parked our car inside his property at the trailhead leading to Deep Creek Hot Springs. It’s a well-known trail outside of Victorville, California, and one where break-ins are common. He offered his protected lot to backpackers when he was home. He had noticed our son, and so came to offer to see his snakes. We accepted this “trail magic,” odd as this one was.
As we walked towards his modest home, he told us he trained dogs to avoid rattlesnakes and kept a large number of Southern Pacific and Mojave rattlesnakes on his property. In Southern California, the Western Diamondback is often the “poster child” for the desert, but the Southern Pacific is most present at the “interface” (where suburbia meets the hills). Though the distinction here is important: whereas Diamondbacks and Southern Pacifics deliver a hemotoxin (acting on tissue), Mojave rattlesnakes also deliver a neurotoxin (acting on the nervous system).
He led us between some sheds, then through a maze of outdoor tables toppling over with (in my opinion) junk, and finally we headed into a decaying mobile home not fit for human habitation.
The first thing that hit me was the smell. Thinking of my ever-trusting son in the care of his sometimes-too-trusting father, I began to worry a bit. We walked to the end of a dark, chilly, faux-wood-paneled hallway to another door. Ugh. What the hell was I doing… he pushed open the second door.
Then came the sound of about 20 pop cans being opened at once. Ppffftttssssss.
The snakes were not happy to have visitors or to have the light switched on. It was clear they had been content in their cold, dark room—an environment probably similar to that of a cool den under a boulder somewhere in the desert.
“A rattlesnake has never eaten anything that wasn’t poisoned. That’s what you’re smelling,” he said. I thought for a moment and realized he was correct. I’d never been prompted to even consider such an idea. (Side note: poisons are ingested, while toxins are injected and so, more accurately in a way, rattlesnakes are regularly poisoning themselves by ingesting the prey they’ve envenomated).
So there we were in a smelly (and creepy) room lit by a single overhead bulb, flanked by two large chicken-wire cages holding about 15 snakes each. Some large adults, some juvenile. All 30-ish of them tracking us, coiled and rattling in warning. He went on about this and that. It was from him that I learned about the different toxins delivered by Southern Pacifics and Mojaves. He even tapped the cage with his bare hand no more than 8 inches from the nose of the large one in the front.
“Why didn’t it strike you?” I asked.
“Ahh. He’s bashed his head against the cage too many times. He knows better now.”
Let that sink in for a moment. He knew better. This snake was exhibiting learned behavior—not something humans normally attribute to the serpent family.
The 2026 Surge
As of April 2026, there have been approximately 78 rattlesnake bites reported across Southern California (likely more by the time of your reading). Sadly, two have been fatal.
This is both unusual and normal. It’s unusual because it’s a high number just three months into the year. It’s normal because about 5-6 people die each year from pit viper strikes across the U.S. The “exceptional” nature of this year in rattlesnake behavior is due to the heavy spring rains across Southern California, followed by a sharp warming trend. The heavy rain supported a booming rodent population. The unusually warm March then brought temperatures above 80°F, pulling snakes out of brumation (hibernation) early to a buffet of rodents. Herpetologists call this a “high activity year,” where abundant food is followed by increased movement in search of mates. The combination inevitably increases the likelihood of snakes crossing paths with outdoorspeople.
Some years, California has no deaths in the national tally, but this year it’s taken the lead. Seven of those reported strikes have happened in Ventura County, where I live, with one death occurring in Wildwood Regional Park, a 20-minute drive from our door. That’s enough to put the community on edge.
Losing a loved one who went on a simple, local hike is a pain I hope to never know. It’s a rare event. And here’s something I think about often: something can be rare but happen all the time. What I mean is: of the averaged 7,000-8,000 pit viper bites annually, 5-6 people die. That’s a very rare outcome. However, according to that average, someone succumbs to envenomation roughly every two months across the country.
Suburban parks and wilderness interface areas, serene in most cases, can provide false security. Having separated ourselves so acutely from nature, aside from punctuated visits, misinformation and myth preside over a spectrum of topics, particularly regarding snake behavior and envenomation.
This series of articles is not designed to endear you to the family of pit vipers, but to educate you on currently understood facts so they can be avoided, or admired from a distance. Education starts with debunking myths and one particular untruth has been persistent.
Juveniles Are Not “More Dangerous”
Key Takeaway: Adult rattlesnakes can deliver up to 50x the total toxin load of a juvenile. While juveniles are dangerous, the “baby snakes are worse” claim is a recent, but persistent myth.
As far back as the 1990s, research has clearly shown that to not be the case. The claim relies on an assumption: baby snakes lack the ability to regulate their venom so, when they strike, they simply empty the tank. It sounds logical, but it ignores how these animals actually operate.
In 1995, W. Hayes tested the assumption using juvenile prairie rattlesnakes to see if they could control their dosage. Hayes found that completely naive juveniles - meaning those striking prey for the very first time - did indeed inject similar amounts of venom regardless of the target’s size. But that changed almost immediately. By their second feeding trial, the juveniles had adapted and began injecting significantly more venom into larger prey and conserving it on smaller prey. A follow-up study, 30 years later, published this year in 2026, found the same result.
The juveniles didn’t grow new muscles in the weeks between trials. They learned. The researchers concluded the juvenile snakes were exerting “intrinsic control of venom delivery under the influence of the central nervous system.” Just like the Mojave in the trailer that figured out hitting the cage was a bad idea, a juvenile rattlesnake figures out how to dose its venom. They aren’t trigger-happy. They are calculating. They are conserving resources.
But let’s assume the worst-case scenario. Let’s say you step directly in front of a juvenile, it panics, and it actually dumps every drop of venom it has into your calf. You are still taking a fraction of the hit an adult would deliver.
Venom yield is tied directly to physical size. A 2006 study by M. McCue on the metabolic cost of venom found a positive correlation between a snake’s mass and its venom yield. Bigger snake, bigger head, larger venom glands. A maximum payload from a juvenile might hit you with 1 to 5 milligrams of venom (10-25 μL). An adult, on the other hand, can deliver 5 to 25 milligrams (200-1000+ μL). As Hayes put it in 2026: “As the snakes grow in length, a single dimension, their venom gland expands in three dimensions. Thus, the volume of venom in the gland increases exponentially.”
The adult delivers up to 50x the total toxin load. Even if a juvenile gives you everything it has, it’s a lightweight dose compared to a mature pit viper. Juveniles are still dangerous, but not as dangerous.
Why don’t they just dump the tank every time? Because nature is an economy of calories, and venom is calorically expensive to manufacture.
When McCue measured the metabolic cost of venom production, he milked pit vipers and then tracked their resting metabolic rates. For three days after extraction, the snakes’ metabolisms spiked by 11%. Producing the complex proteins and enzymes required to kill prey demands massive physiological resources. As McCue observed, venom is “relatively costly to replace.” Emptying a venom gland into a threat that the snake can’t even eat (like a human) leaves the animal metabolically taxed and biologically defenseless while it manufactures more. They meter their venom because they can, and because their survival depends on not wasting it.
Actionable Steps for 2026 Trail Conditions
- Use Trekking Poles: The tap-tap-tap vibration, in addition to your footfalls, alert snakes that you are not prey.
- Watch for trail “compressions”: Use trekking poles to probe areas where encroaching brush or rocky outcrops narrow the trail. This is where snake are likley to be hunting.
- See and Be Seen: Admire snakes from a distance. A thrill when you’ve made your presence known. Use your tools in the same way the snakes do.
Snakes are not hunting humans and, despite anxieties, do not pursue humans. They will, however, strike by mistake if a human limb suddenly appears before them, or strike in defense if they feel threatened.
Our best evidence suggests that snakes developed rattles as an audible defense to alert large mammals. Several snakes vibrate their tails when anxious, but only one evolutionary branch developed an actual rattle. It’s not an alert of a strike. It’s an alert that it will strike, if the unaware, curious, or aggressive animal comes any closer. A snake that is truly hunting won’t make a sound. If it did, it would lose its prey. Camouflage is always a snake’s first strategy.
Clinical data reveals that MOST snake bites across the U.S. are suffered by males aged 18-44 years, and predominantly on the hand (often involving alcohol). Let that sink in for a moment.
But let’s be generous and assume sober males are not actively trying to handle snakes. Bites on the hand strongly oppose the lore that snakes are silently striking hikers as they pass by. Instead, they strongly suggest that such bites are defensive. Hands should not be reaching into areas you can’t see clearly, whether you are reaching into blind crevasses, pockets, or brushy growth.
Sometimes, those limbs end up in the brush by accident. Out of respect for the families, I will not discuss details - do your own research - but at least two of the strikes locally this year happened when the patient lost balance on their mountain bikes, falling into trailside brush where a snake was apparently coiled. The bites were likely the result of the bikers’ limbs plunging into the brush, surprising the snake. Another case was on the lower leg in a narrow and steep section of a trail flanked by brush and rocky outcroppings. An ideal place for a snake to lay in wait for passing rodents.
The decimation of national park and forest budgets means that trail maintenance is often left to volunteers, resulting in undermaintained and overgrown paths. Brush encroaches into the trail, compressing the walkway and creating a perfect environment for snakes to hide.
Snakes are ambush predators with a strategy that works. Specifically in California, they will coil on the edges of a trail and wait for something to pass by. You won’t see them until they make themselves known. The best thing you can do is let it know you’re there, and you’re not a rodent. Make noise. Use trekking poles.
If you love hiking, rekindle your awareness of the nature around you. Recognize when you are entering a compressed trail with brushy borders or rocky pockets. Make it clear that you are a large mammal. Use poles. If used correctly, they will be paced in front of your feet as you walk. Snakes don’t hear like we do, but they sense vibrations in the ground. Poles strike and vibrate, alerting snakes of your presence. Probing compressed trail passes before you move through, confirming to the snake that you’re not a mouse or rabbit.
For a moment, think like a snake and alert potentially dangerous animals of your presence so that a defensive interaction doesn’t take place. The snake is smart enough to use its rattle to that effect. Use your tools to do the same.
If they have time to see you, they will most often do one of two things:
1) Completely ignore you. And I mean IGNORE. I’ve tried to coax snakes off roads and paths with my trekking poles and they simply do not wish to move.
2) Fire off a few angry rattles and then, if you simply stand there watching from a safe distance, amble off the trail to looking for happier hunting grounds.
Here’s the key” SEE and BE SEEN.
Academic Sources & Further Reading
Cost of Producing Venom in Three North American Pitviper Species
The “T’s” of snakebite injury in the USA: fact or fiction?
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