Research was adapted from life in the trees to live on the ground before the dinosaurs were killed.

A new research on the University of Bristol revealed that more mammals lived on the ground several million of the event that was eliminated by dinosaurs.

The study, published in the magazine CasesIt provides new evidence that many mammals were already turning towards a more existing lifestyle that leads to the effect of the asteroid.

By analyzing the small bone fragments in which, specifically from the bones of the limbs, from the sponsoring and sponsoring mammals in western North America-the only place where a fossil record for well preserved floors from this time-the team discovered signs that these mammals were adapting to life on the ground. The end of the bones of the limbs has been analyzed because it carries signatures of the kinetic habit that can be statistically compared to modern mammals.

“It was already known that plant life had changed at the end of the Cretaceous era, with flowering plants, known as blood vessels, and creating more diverse habitats on Earth,” said Professor Christine Janice, the head of the head of the Earth Sciences at the University of Bristol.

“We also knew that mammals that make trees are struggling after the effect of the asteroid. What was not documented is whether the mammals became more earthly, in line with habitat changes.”

While previous studies used the full skeletons to study the movement of old mammals, this research is one of the first to use small bone elements to track changes within an entire society. The team used statistical data from the collections of museums in New York, California, and Kilhri to analyze these small excavations.

Professor Janis added: “The plant habitats were more important in the path of the development of chalk mammals than any impact of dinosaurs.”

Evidence was collected from articulated fragments of the breast breasts, which include the lane and the stimulus. The team’s methods were not applied to more basal mammals like multiple negatives, which were common at the time, because their bones were different.

Professor Janes said: “We have long known that the long bone arthropitias can carry good information about their position in movement, but I think this is the first study that uses these small bones to study change within society, rather than individual species.”

While this research represents the end of the project, the results provide new visions on how to respond before date to changing environments – a million years before the asteroid’s effect on the ground.