Contrary to popular belief, not all dinosaurs were ferocious. Some wanted a peaceful life and would stay out of trouble, while others would only attack if they were provoked and needed to protect themselves. Each subspecies of dinosaur had its own personality traits and, like humans, temperaments could differ between creatures. That said, here’s a rundown of the least ferocious vs most ferocious dinosaurs that roamed the earth. 

Least Ferocious

Dinosaurs have a reputation for being fierce, but some were rather on the harmless side. Prehistory’s least ferocious dinosaurs include:

Diplodocus 

If you came upon a diplodocus 150 million years ago, you would be forgiven for running away. These creatures reached lengths of up to 27 metres and could weigh up to 80 tons. They had long necks,which enabled them to reach up and eat the leaves of trees, as well as large, whippy tails. Despite their domineering appearance, however, Diplodocuses were probably gentle giants. 

According to research, Diplodocuses were not aggressive dinosaurs. They were, in fact, generally peaceful herbivores that kept to themselves and focussed on raising their young. They did not exhibit aggressive behaviour towards other creatures and would travel from place to place in large herds as a safety mechanism. Due to not eating meat, the Diplodocus didn’t hunt to kill or scavenge for dead animals.

The Stegosaurus 

With its heavily armoured body and weapon-like tail, the Stegosaurus had quite a daunting appearance. But in fact, this creature was a slow-moving herbivore who spent large amounts of time looking for and consuming leaves. 

It’s also thought that the Stegosaurus lived in small herds for protection and would stay together to nurture their young. This meant that despite its questionable intelligence and walnut-sized brain, the Stegosaurus could form long-lasting relationships and live harmoniously with others. Again, as a herbivore, the Stegosaurus did not set out to kill and would only become aggressive to protect itself if necessary.

Most Ferocious 

While some of the most well-known dinosaurs were friendlier than we might have thought, others very much lived up to their reputation. The world’s most ferocious dinosaurs include:

T-Rex

With a strong bite, sharp teeth that reached up to 30cm in length, and a keen sense of smell which helped it to sniff out prey, the T-Rex is amongst the scariest dinosaurs to have walked Planet Earth. Weighing up to eight tons, T-Rex even had vents in its head which kept its brain cool while it was crushing prey. Its sixty serrated teeth would quite literally rip flesh apart, meaning other animals would stay out of its way!

Spinosaurus Aegyptiacus 

It might not be as well known as the T-Rex, but the Spinosaurus Aegyptiacus is believed to have been the largest species of carnivorous dinosaur that ever lived, measuring over 15 metres long. Known as a formidable ‘river monster’ it would hunt in water and on land with the help of its crocodile-like skull and teeth capable of eating fish and other dinosaurs.

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