Tauri Sylvestres (also known as Forest Bulls) are cattle with red fur and blue eyes. They are the natural enemies of the Troglodytes.
Description[]
Forest Bulls are twice the size of regular bovines, with indestructible hide. If they are trapped in a pit, they will soon choke to death on their anger. When they disintegrate, the hide remains. Forest Bulls possess incredible tracking abilities, able to locate their intended prey anywhere. While capable of swimming, they are not very skilled at it.
The Trials of Apollo[]
The Tower of Nero[]
Three cattle cars filled with Tauri Sylvestres are placed in the rail yard across from one of the Dare family’s properties. When Rachel Elizabeth Dare arrives and calls the authorities for animal neglect, they find nothing as they are magical. Two days later, when Apollo, Meg McCaffrey, Nico di Angelo, and Will Solace arrive they break out and chase them to a construction site. Some of them fall into a pit and die as the others look at them.
While Apollo and the others were having dinner with the Troglodytes, a number of them crashed through the cavern sealing, forcing the Troglodytes to flee. However, Grr-Fred was able to dig a tunnel fast enough to escape them, aided by the fact they are poor swimmers.
During the Battle of Nero's Tower, a Taurus Sylvestrus attacks the forces of Camp Half-Blood with Kayla Knowles having apparently learned the hard way that the demigods can't kill it. Kayla enlists the younger campers' help to lead the monster off of the terrace to its death. Later, Nico leads a reanimated Taurus Sylvestris into Nero's throne room and commands it to attack him. It eventually collapses under the Germani's dogpiling and is reduced to a pile of bones.