According to Guinness World Records, the snake measured 7.22 meters using a surveyor’s tape. She was also weighed inside a canvas sack on scales normally used for rice, coming in at 96.5 kilograms, or about 213 pounds. She hadn’t recently eaten, which is worth noting, since a large meal can dramatically inflate a python’s weight.

In practical terms, this gap between perception and movement creates a hard physiological limit. No amount of training, vigilance or experience can meaningfully overcome it once a strike has begun.

From a biological standpoint, this places vipers in a unique category. Their strikes are fast enough to outpace even the fastest mammalian sensorimotor loops, which means that evading the strike will depend fully on anticipating it, rather than reacting to it. This is why prey species that survive vipers often rely on distance, vigilance or erratic movement; speed alone is not enough.

In 2017, study author Dikansh Parmar was volunteering with a local animal rescue group that received a call about a snake onboard a train. The incident is now included as part of this study. Another train rescue occurred in 2019, which ended up in a newspaper report in Uttarakhand. An incident occurred in 2023, in which a snake catcher from Gujarat State snapped a picture of an Indian Cobra sitting in a train window.

The study team writes, "With the increased global availability of low-cost smartphones and social media in recent years, the number of reports of snakes on and around trains in India has increased, with three incidents recorded in a 30-day period, and many more emerging on social media."

Those destined for Pacifica will be released into a habitat that has been upgraded for their arrival. The project included creating a new pond for snakes and red-legged frogs to thrive, and removing invasive Monterey Cypress and Monterey Pine trees.
“If we didn’t do any type of tree removal, those scrub and grassland areas would be converted into forested habitats,” said Fong. “For sun-loving reptiles like snakes, converting open grasslands and scrub to forested habitats is not great.”
In December, a vegetation crew from NPS scattered seeds to help populate the upgraded habitat with native plant species.
One remaining concern is the continuing threat posed by people and their pets. The striking colors that make the San Francisco garter snake a California icon have also made it a target for illegal poaching for the pet trade, said McNellis. SFO can secure its habitat with a security fence, but other habitats cannot provide protection.