"The Big One" (nicknamed by Robert Muldoon) is a velociraptor and the main antagonist of Jurassic Park.
Though her name may suggest that she is the largest raptor in her pack, there is no evidence that Stan Winston Studio nor Industrial Light and Magic made one of the raptors in the film larger or with unique physical traits than the others and evidence points toward her being physically identical to the other raptors in her pack. Her name may just be a reference to the fact that she is the leader of her pack or in other words "the big one in charge".
Overview[]
All Velociraptors, including the Big One, were initially bred on Site B, particularly a compound owned and operated by InGen. Eight raptors were transported to Isla Nublar, the site of InGen's upcoming Jurassic Park theme resort.
When the Big One came in she took over the pride and killed all but two of the other raptors (Kim and Randy). She commanded her two remaining subordinates to attack the security fencing. Muldoon claimed that in comparison to the other raptors, the Big One had an extremely high problem-solving intelligence, remembering the location of certain weak spots in the fencing and where feeders would come to feed the animals as stated.
As a result, the raptors had to be transported into a special holding pen to be fed by an automated feeding system to make sure they stayed in.
While being transported for the holding pen, it was theorized that she attacked and killed an InGen employee. This prompted the worker's family to file a lawsuit against the company, and it successfully scares InGen's investors into thinking that the park is unsafe. Additionally, Robert Muldoon expressed concern that the Velociraptors would escape.
When the electricity power was cut by Dennis Nedry during the Isla Nublar Incident, Nedry's computer confirmed that the Raptor pen was still active, as Nedry knew full well how much of a threat the Raptors were.
Later, when the staff decided to reboot the power to purge the computer system of Nedry's virus, it inadvertently shut down the fences in the Raptors' holding pen as well. Unknown to the survivors, the three Raptors realized they had an opportunity and broke out of confinement, as Muldoon was afraid they would. He and Ellie realized that the Velociraptors escaped when they went to reboot the power, and realized they were in serious danger.
The Big One then killed and eat Ray Arnold inside the Maintenance Shed while Kim and Randy killed and ate Robert Muldoon in the jungle. The Big One got temporary locked inside the Maintenance Shed by Ellie Sattler while her companions hunted for the rest of the survivors through the Jurassic Park Visitor Center there Randy got locked inside the kitchen freezer by the Murphy siblings Lex and Tim. However The Big One managed to break out and reached the Visitor Center.
Death[]
Neither The Big One or Kim, survived the incident. Shortly after her arrival The Big One was killed by Rexy, Kim then pounced on the large predator while she was eating her leader, allowing the group she so relentlessly pursued to finally escape. As Kim clawed into Rexy, she shook Kim into her mouth where she proceeded to shake the raptor until she was lifeless before throwing her into the nearby Tyrannosaur skeleton the Visitor Center had (smashing it in the process) and letting out a triumphant roar.