Carnotaurus

Carnotaurus was a large dinosaur predator that lived in South America during the Late Cretaceous Period. It is a relative of another theropod dinosaur from Madagascar called Majungasaurus (formerly Majungatholus). Characteristics of Carnotaurus include their very small hands as well as horns above their eyes, and a short snout. Females are usually smaller and have smaller horns. Males use their horns in fights with other males, as well as use their mating season camo, to impress females. When compared to their body size, the arms of the Carnotaurus were smaller even than those of the T. rex.

More real-life information: Carnotaurus at Wikipedia.

Jurassic Park Series
This animal was not in any of the films. Carnotaurus made a come back in Jurassic Park Adventures.

The Lost World (novel)
They have almost perfect chameleon-like camouflage (likely due to DNA tampering), able to replicate even patterns and shadows on their skin as shown in The Lost World novel. They are perfect ambush predators, but are too slow to actually give chase to prey that might become alerted to their presence.

Jurassic Park Adventures
The Carnotaurus is the main predator in Jurassic Park Adventures: Prey. There is a herd of four animals with a large leader with a red back, called 'Big Red'.

Jurassic Park inspired games
The Carnotaurus appears in the arcade game and console game of The Lost World: Jurassic Park as a boss. In both games it can camoflage - meaning that it can be invisible. The arcade game describes it as a "chameleon-type dinosaur". Carnotaurus is also seen in Jurassic Park III: Park Builder.

Links

 * myjurassicpark.com