There is a list of animals that should probably not be kept as pets, there are the obvious ones, then there are mantis shrimp. Despite it’s name the mantis shrimp isn’t technically a shrimp but actually a stomatopods, a distant relative to crustaceans. Now generally it shouldn’t be kept as pets due to the mantis shrimp packing the strongest punch of all animals, a punch that can go to speeds up to 23 meter per second(almost 85 km/h) and with a force of nearly 100 times its body mass