While giving the visitors to Isla Nublar a tour of the facilities, Dr. Henry Wu pointed out a series of syringes under an ultraviolet light. They were described as containing helotoxins, colchicinoids, and beta-alkaloids, all poisons virulent enough to kill a living animal in a few seconds. The syringes were used to interrupt cellular mitosis in an instant, a process necesary to the DNA research being done in the lab. Later, Dr. Alan Grant used similar syringes to poison a group of Velociraptors. Two ate eggs injected with toxin, while the other received a direct injection in the tail by a syringe-wielding Grant. The syringes were presumably destroyed in the firebombing of Isla Nublar.