5 Fun Facts About the Vervet Monkey 1. They have different alarm calls. Vervet monkeys…

5 Fun Facts About the Vervet Monkey 1. They have different alarm calls. Vervet monkeys are thought to have up to 30 different alarm calls for different predators and situations. 2. There are several subspecies. Although there is only one species of vervet monkey in the world, there are several different types of subspecies. 3. They’re extremely similar to humans and used to help us better understand human conditions. 4. They have bright blue testicles. Why their testicles are blue is not entirely understood, however they’re likely linked to sexual selection. 5. They have been observed to act out of spite. Spite isn’t really a thing in the animal world.