Dinosaurs declined before the asteroid impact, according to a new study

Everyone knows that the great asteroid impact with the earth was finally responsible for the dinosaur extinction. A recent new study was published by a team of international scientists, including researchers from the University of Bristol, which showed dinosaurs decreased by 2 million years before the asteroid impact. Fabian Condamine’s research said that the researchers viewed six of the most abundant dinosaur families during the Cretaceous starting from 150 to 66 million years ago.

The team found that they all evolved and developed and succeeded, but 76 million years ago, they showed a sudden decline. The extinction rate for increased beings, and in some cases, the original level for new species decreases. The team used Bayesian modeling techniques to take into account some uncertainty, including incomplete fossil records, uncertainty over the fossil age dating, and uncertainty about the evolutionary model.

Each model is run millions of times to consider all possible error sources to determine whether the analysis will be integrated in the agreed and most likely results. Other researchers about the project view the function of the dinosaur ecosystem, and it is clear that plant-eating species tend to disappear first. It makes the dinosaur ecosystem unstable and responsible for collapsing if environmental conditions become damaged. Dinosaurs eat meat tend to consume plant-eating dinosaurs, and a decrease in one group means another decline.

The researchers about this study said it became clear that there were two main factors, with the first climate as a whole becoming cooler, making life harder on dinosaurs who needed warm temperatures. The loss of herbivores made an ecosystem unstable and vulnerable to the kascade of extinction. The team also found that long-lived dinosaur species are more responsible for extinction, potentially reflecting that they cannot adapt to new conditions on earth.