15 Scary Prehistoric Animals Cavemen Lived With

When we think of the caveman era, often our minds drift to images of early humans fighting against large, intimidating creatures. Indeed, prehistoric animals that lived with humans were both fascinating and terrifying. Let’s dive into the world of these scary extinct animals and explore the life of real-life cavemen.

The Caveman Era

The term “caveman” is often used to describe early humans who lived during the Paleolithic era, also known as the “Old Stone Age”. This was a time when humans began to use stone tools, an era that spanned from approximately 2.6 million years ago until about 10,000 years ago. These early humans, often referred to as cavemen, lived alongside some of the most fearsome creatures ever to walk the earth.

Giant Animals of Prehistory

One of the most notable aspects of prehistoric life was the size of the animals. From the towering Titanoboa to the massive mammoths, the prehistoric era was filled with giant animals. The reasons why animals were so big back then are complex, but it’s generally believed that higher oxygen levels, warmer temperatures, and abundant food sources contributed to their colossal sizes.


Imagine a snake so large that it could swallow a human whole. That’s the Titanoboa, a prehistoric serpent that could reach lengths up to 42 feet and weigh over a ton. This monstrous creature is one of the scariest water dinosaurs that ever existed.

Woolly Mammoth

The Woolly Mammoth, a cousin of today’s elephants, was another giant of the prehistoric world. These majestic creatures stood up to 13 feet tall at the shoulder and weighed as much as 6 tons. Mammoths and humans coexisted, with early humans hunting these massive beasts for their meat, bones, and fur.


Standing at a height of up to 10 feet and weighing as much as 1,200 pounds, the Gigantopithecus was the largest ape to ever exist. Despite its intimidating size, it’s believed that this creature was primarily a vegetarian, feeding on bamboo and other plant material.

Scary Predators of Prehistory

Not all prehistoric animals were gentle giants. Some were fearsome predators, equipped with sharp teeth and claws to hunt and kill their prey.

Dire Wolf

The Dire Wolf was one of the most formidable predators of the Pleistocene era. Larger and heavier than modern-day wolves, the Dire Wolf was a powerful carnivore that likely hunted in packs. Its size compared to a human gives us an idea of how formidable this creature was.

Short-Faced Bear

The Short-Faced Bear was one of the largest terrestrial mammalian carnivores of all time. Standing over 11 feet tall on its hind legs and weighing up to 3,500 pounds, it was a truly terrifying sight. Despite its size, it’s believed that this bear was more of a scavenger than a hunter.

Sabre-Toothed Cat

No list of scary prehistoric animals would be complete without the Sabre-Toothed Cat. Known for their long, sharp canine teeth, these predators were one of the most successful hunters of their time. They used their impressive teeth to deliver a fatal bite to the throat or belly of their prey.

Prehistoric Animals Still Alive Today

While many prehistoric creatures are long extinct, some descendants still roam the earth today. For example, crocodiles have been around for over 200 million years, making them older than even the dinosaurs. Other examples include the Coelacanth, a fish believed to be extinct until it was found alive in the 20th century, and the Komodo Dragon, which has remained virtually unchanged for millions of years.


The caveman era was a time of giants and terrifying predators. Yet, despite the dangers, our ancestors managed to survive and thrive in this harsh world. As we continue to uncover more about this fascinating period, we gain a deeper understanding of our own place in the history of life on Earth.

So next time you’re out in nature, take a moment to imagine what it would have been like to

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