The asteroid that made the planet one million The nearly 10 – mile wide asteroid also decimated the earth 's forests and, according to a new study, led to the extinction of tree birds Co-author of the Field Museum, paleontologist Regan Dunn.
For the study, published next month in the journal Current Biology, Dunn and other scientists examined fossils in which the coal remains of burnt residues. Along with other studies of plants and birds, evidence suggested that after the asteroid fell, the treetops collapsed and the Cretaceous extinguished robins, sparrows, and other small-legged birds settling on branches.
"Squatting birds have died out because there were no perches," Dunn said in a statement.
The surviving birds, meanwhile, were more bottom-dwelling animals with more stable legs, similar to modern bottom birds such as kiwis and emus. Only a handful of bird lines survived the mass extinction caused by the asteroid, and these birds almost serve as ancestors all 11,000 live bird species found on earth today.
While the findings of the study shed new light on the plight of birds after the earthquake event, the so-called Chicxulub asteroid, Dunn also emphasizes the importance of plants that are often overlooked compared to fossil studies of animals such as dinosaurs and birds.
"Plants are the context in which all earthly life evolves and survives," she said in a statement. "They provide energy to all living things through Capturi" We can not do that "" It's important for us to understand what happens when you destroy an ecosystem like deforestation and climate change so we know how it affects our actions, what comes afterwards, "she said.
Also, scientists from the University of Bath, the Smithsonian Institution, Cornell University, the University of Rhode Island, the Denver Museum of Nature and Science, The Swedish Museum of Natural History and Yale University have contributed to the study.
Máximo the Titanosaur debuts on June 1 at the Field Museum