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Global warming spawned the age of reptiles

Global warming spawned the age of reptiles

August 19, 2022

Studying climate change-induced mass extinctions in the deep geological past allows researchers to explore the impact of environmental crises on organismal evolution. One principal example is the Permian-Triassic climatic crises, a series of climatic shifts driven by global warming that occurred between the Middle Permian (265 million years ago) and Middle Triassic (230 million years ago). These climatic shifts caused two of the largest mass extinctions in the history of life at the end of the Permian, the first at 261myo and the other at 252myo, eliminating 86% of all animal species...

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Lungless salamanders develop lungs as embryos despite lung loss in adults for millions of years

Lungless salamanders develop lungs as embryos despite lung loss in adults for millions of years

August 17, 2022

Lungs are essential to many vertebrates including humans. However, four living amphibian clades have independently eliminated pulmonary respiration and lack lungs, breathing primarily through their wet skin. Little is known of the developmental basis of lung loss in these clades.

In a new study in Science Advances researchers in the Department of Organismic and Evolutionary Biology and the Museum of Comparative Zoology at Harvard...

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Biohybrid fish on a hook

Biohybrid fish made from human cardiac cells swims like the heart beats

February 14, 2022
Harvard University researchers, including MCZ Faculty-Curator of Ichthyology George Lauder and graduate student David Matthews, in collaboration with colleagues from Emory University, have developed the first fully autonomous biohybrid fish from human stem-cell derived cardiac muscle cells. An autonomously swimming biohybrid fish designed with human cardiac biophysics is published in Science and featured by the... Read more about Biohybrid fish made from human cardiac cells swims like the heart beats
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