Some of these pictures and descriptions may give away plot details that you might not want to know before watching the film.
This is the fourth sequel to the original Jurassic Park (1993). That movie had a quick cameo by a snake. This one has a quick cameo by a few snakes. That's what we call progress. Maybe the fifth sequel will have an entire island full of snakes.
Bryce Dallas-Howard plays an uptight hair-helmeted PR woman for the park who is babysitting her sister's two kids for the day. (Spoiler alert - she messes her hair up pretty bad by the end of the movie by running around too much in high heels.) Chris Pratt is a dinosaur whisperer. The four of them are running around the abandoned park trying not to get eaten by all the escaped dinosaurs after the other 21 thousand visitors have fled the island. (When will they ever learn not to open another dinosaur park? Never, as long as the sequels keep making a fortune, and this one made almost $2 billion!)
At one point the four enter the laboratory where the park's science witches stirred a cauldron full of DNA to make the super-dinos that are now eating everyone. We are told that the scientists used tree frogs, T-rex, velociraptor and pit viper genes, among others. In the background we see a few snakes in terrariums in the lab, including some albino snakes, along with other creepy stuff. This is exactly how all science labs keep their specimens - in brightly-lit glass enclosures displayed in the middle of the lab. Only in the movies....
I can't tell what kind of albino snakes they are. Maybe some type of boas or pythons.