Top Pre-Dino Apex Predators

These are the top five ancient predators that made dinosaurs look harmless, and the last one

had saber teeth before cats dreamed of them. Comment which pre-dino monster you'd least

want to meet. Like and subscribe if you love prehistoric terrors, or you'll think

T-Rex was the scariest ever. First is Anomalocaris from the Cambrian, around 520 million

years ago. This 1-meter long swimmer was the first apex predator with huge compound

eyes, spiny grasping arms, and a mouth like a circular saw that shredded armored

trilobites—dinosaurs wouldn't evolve for another 200 million years. Next is Jaekelopterus,

a Devonian sea scorpion up to 2.5 meters long with massive pincers and a spiked tail.