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A researcher fires a biopsy dart at an orca.The dart will remove a small piece of the whale's skin and bounce harmlessly off the animal. Cetology (from Greek κῆτος, kētos, "whale"; and -λογία, -logia) or whalelore (also known as whaleology) is the branch of marine mammal science that studies the approximately eighty species of whales, dolphins, and porpoises in the scientific ...
The evolution of cetaceans is thought to have begun in the Indian subcontinent from even-toed ungulates (Artiodactyla) 50 million years ago (mya) and to have proceeded over a period of at least 15 million years. [2] Cetaceans are fully aquatic mammals belonging to the order Artiodactyla and branched off from other artiodactyls around 50 mya.
Skull of the holotype at the Museum of Natural History, Lima of National University of San Marcos. In November 2008, a partially preserved skull, as well as teeth and the lower jaw, belonging to L., the holotype specimen MUSM 1676, were discovered in the coastal desert of Peru in the sediments of the Pisco Formation, 35 km (22 mi) southwest of the city of Ica.
Another gray whale was spotted off the coast of Israel in 2010, according to the Mediterranean Science Commission. View this post on Instagram A post shared by Capt. Abie Raymond (@abie_raymond)
A gray whale extinct from the Atlantic for more than 200 years was spotted off the New England coast last week in an “incredibly rare event,” the New England Aquarium said.
Recurring cultural, political, and theological rejection of evolution by religious groups [a] exists regarding the origins of the Earth, of humanity, and of other life. In accordance with creationism, species were once widely believed to be fixed products of divine creation, but since the mid-19th century, evolution by natural selection has been established by the scientific community as an ...
Eschrichtiidae or the gray whales is a family of baleen whale (Parvorder Mysticeti) with a single extant species, the gray whale (Eschrichtius robustus), as well as four described fossil genera: Archaeschrichtius (), Glaucobalaena and Eschrichtioides from Italy, [1] [2] and Gricetoides from the Pliocene of North Carolina. [3]
Once common throughout the Northern Hemisphere, gray whales are now only regularly found in the North Pacific Ocean.