Can Dinosaurs Get Cancer? A Closer Look at the Evidence

Can Dinosaurs Get Cancer
Can Dinosaurs Get Cancer

Dinosaurs have long fascinated scientists and the public alike. However, despite extensive research on these ancient creatures, one question has remained unanswered: could dinosaurs get cancer?

In this article, we will examine the available evidence to shed light on this intriguing question and explore the factors that may have contributed to cancer in dinosaurs.

The Prevalence of Cancer in Modern Animals

To understand the likelihood of cancer in dinosaurs, it is essential first to consider the prevalence of cancer in modern animals. Cancer is a disease that occurs when cells in the body begin to divide and grow uncontrollably, leading to the formation of tumors. While cancer can occur in almost any type of animal, some species are more susceptible to the disease than others.

Evidence of Cancer in Dinosaurs

While the soft tissues of dinosaurs do not typically preserve well over millions of years, scientists have identified specific types of cancer in fossils. For example, a study conducted in 2003 found evidence of bone cancer in a dinosaur specimen.

The specimen, a Centrosaurus apertus, exhibited features consistent with osteosarcoma, a type of bone cancer commonly found in humans and other animals.

Possible Causes of Cancer in Dinosaurs

The occurrence of cancer in dinosaurs raises questions about what may have caused the disease to develop. One possible explanation is that the dinosaurs were exposed to carcinogens in their environment.

For example, they may have been exposed to high radiation levels from the sun or from naturally occurring radioactive elements in the earth. Alternatively, the high oxygen levels in the atmosphere during the Mesozoic era may have contributed to the development of cancer in dinosaurs.


In conclusion, the evidence suggests that dinosaurs could indeed get cancer. While the prevalence of cancer in dinosaurs is difficult to determine due to the lack of soft tissue preservation in fossils, the discovery of bone cancer in a dinosaur specimen indicates that the disease was present in at least some members of this ancient group.

Further research is needed to understand the causes of dinosaurs’ cancer better and determine the extent to which the disease impacted these fascinating creatures.