A research of ancient species with bone fragments found in Bahamas showed that, of all extinct animals, more than 55 % survived through a global climatic change, only to be exterminated by people. 70 % of those living in the United States believe that a climatic change is a serious issue, even if respondents keep discussing whether human intervention is responsible for these dramatic problems. But all other biological may experience an even higher risk than environmental changes: people themselves.
Ten years ago, an expert analysis examined a Bahaman region whose toxic water chased many other travelers, but it had completely preserved ancient fossils of animals now vanished. The scientists released their results on Thursday in the American paleontological publications. These fossils, including bones of tortoises and crocodiles, offered experts a remarkable overview of what a modern ice age environment would have looked like in the Caribbean regions
It was a challenging experience, since dramatic environmental changes in the Pleistocene and Holocene eras, approximately 15,000 years ago, compacted the isle to only 1/10 of its previous dimension as snow melted, oceans’ levels increased and all local plants became exotic. All over the planet, the end of an ice age produce a wide range of extinction causes, because that is when famous animals, such as wooly mammoths or massive sloths disappeared from the face of the Earth.
For decades, researchers have discussed whether that period of climatic changes is accountable for these extinctions in mass, or whether humanity also hurried this process, as environmental changes let humans get into new territories: traversing the Bering Strait and colonizing American regions, for example.
But humans have only lived in the Bahamian areas for little over a millennium, providing scientists a good chance to evaluate the region’s ancient species. These bones originate from before the melting eras, with Ice Age bone fragments, and those of creatures that went extinct after people came to the isles.
Scientists hoped that studying which varieties of animals survived to the new eras and how they were able to do it, would show them signs about how these creatures have adapted to a harsh environment, and also to people, who changed the surrounding regions a lot more by using them for farming and hunting.
Image source: Geology.com