Web30 nov. 2024 · Over time, the unicellular ... Scientists make these assumptions about how the eye evolved because eyes in corresponding stages to this sequence have been found in species that exist today. A Single Source. As eyes were evolving from crude, light-sensitive cups to more complex systems, the Earth was also undergoing a dramatic shift ... WebThe ancestor of today’s whales, the first cetacean, is believed to be Pakicetus, a quadruped measuring 1 to 2 metres long. Skeletons discovered in Pakistan indicate that the animal had typical artiodactyl ankles and a typical cetacean skull. Unlike today’s whales, this species was not aquatic and its ankles are testimony to its running ability.

Research Overview - University of Houston

WebThe earliest fossil evidence for sharks or their ancestors are a few scales dating to 450 million years ago, during the Late Ordovician Period. Emma Bernard, a curator of fossil fish at the Museum, says, 'Shark-like scales from the Late Ordovician have been found, but no teeth. If these were from sharks it would suggest that the earliest forms ... WebEnergy & Earth Resources; Earth & Planetary Dynamics; Atmospheric & Earth Surface Systems; Energy & Earth Resources. Located in Houston, Texas, the center of the world's petroleum industry, EAS faculty are involved in a wide range of energy and resource-related research – from exploration to effective stewardship of limited resources. how does nike communicate with employees

The History of Rockets Space

Web28 jun. 2024 · Hints of multicellularity date back 3 billion years, when impressions of what seem to be mats of microbes appear in the fossil record. Some have argued that 2-billion-year-old, coil-shaped fossils of what may be blue-green or green algae—found in the United States and Asia and dubbed Grypania spiralis—or 2.5-billion-year-old microscopic … Web2 jun. 2024 · In Earth's Beginning At its beginning, Earth was unrecognizable from its modern form. At first, it was extremely hot, to the point that the planet likely consisted … WebBirds arrived comparatively late. on Planet Earth. First came insects, in the unimaginably distant past. For over 100 million years or more they ruled the skies. But these were mere pioneers of ... how does nike communicate with shareholders