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Timeline of Whale Evolution - Smithsonian Ocean Portal; Cetacean Paleobiology – University of Bristol; BBC: Whale's evolution; BBC: Whale Evolution – The Fossil Evidence; Hooking Leviathan by Its Past by Stephen Jay Gould; Research on the Origin and Early Evolution of Whales (Cetacea), Gingerich, P.D., University of Michigan
Whales, the ocean’s largest marine mammals, renowned for their immense size and exceptional adaptability can be found roaming waters all over the world. ... Whale Watch: A 5-Day Unit Plan for ...
Whale skulls have small eye orbits, long snouts (with the exception of monodontids and ziphiids) and eyes placed on the sides of its head. Whales range in size from the 2.6-metre (8.5 ft) and 135-kilogram (298 lb) dwarf sperm whale to the 34-metre (112 ft) and 190-metric-ton (210-short-ton) blue whale.
The timeline of the evolutionary history of life represents the current scientific theory outlining the major events during the development of life on planet Earth. Dates in this article are consensus estimates based on scientific evidence , mainly fossils .
The evolution of these sinuses also seems to have caused some restructuring of the skull base due to the development of bony walls surrounding the sinuses. The ectotympanic of all cetaceans, including Pakicetus and Ambulocetus , has a bony growth (involucrum) on the medial lip speculated to aid in the detection of low-frequency sounds.
In a video by the Ocean Exploration Trust, scientists return to a whale fall off the coast of British Columbia for the third time in a decade to glimpse the life still clinging to a whale’s ...
It was designated a UNESCO World Heritage Site [2] in July 2005 [3] for its hundreds of fossils of some of the earliest forms of whale, the archaeoceti (a now extinct sub-order of whales). The site reveals evidence for the explanation of one of the greatest mysteries of the evolution of whales : the emergence of the whale as an ocean-going ...
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