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Aetiocetus is a small, toothed whale with no more than three small denticles on the anterior and posterior margins of the posterior upper teeth. Their postcanine teeth are somewhat heterodont. The base of the rostrum, or snout, of the whale, is greater than 170% of the width of the occipital condyles where the skull meets
Baleen is a filter-feeding system inside the mouths of baleen whales. To use baleen, the whale first opens its mouth underwater to take in water. The whale then pushes the water out, and animals such as krill are filtered by the baleen and remain as a food source for the whale. Baleen is similar to bristles and consists of keratin, the same ...
The most conspicuous fossils are the skeletons and bones of whales and sea cows, and over several hundred fossils of these have been documented. [8] Wādī al-Ḥītān (Whale Valley) is unusual in having such a large concentration of fossil whales (1500 marine vertebrate fossil skeletons) in a relatively small area.
The second gray whale, which was captured in 1971 from the same lagoon, was named Gigi II and was released a year later after becoming too big. [157] The last gray whale, J.J., beached itself in Marina del Rey, California, where it was rushed to SeaWorld San Diego and, after 14 months, was released because it got too big to take care of ...
Janjucetus is an extinct genus of cetacean, and a basal baleen whale (Mysticeti), from the Late Oligocene around 25 million years ago (mya) off south-east Australia, containing one species J. hunderi. Unlike modern mysticetes, it possessed large teeth for gripping and shredding prey, and lacked baleen, and so was likely to have been a predator ...
The Museum of Osteology, located in Oklahoma City, Oklahoma, U.S., is a private museum devoted to the study of bones and skeletons (osteology). This museum displays over 450 skeletons of animal species from all over the world. [1] With another 7,000 specimens as part of the collection, but not on display, this is the largest privately held ...
Bowhead whale. The bowhead whale (Balaena mysticetus) is a species of baleen whale belonging to the family Balaenidae and is the only living representative of the genus Balaena. It is the only baleen whale endemic to the Arctic and subarctic waters, and is named after its characteristic massive triangular skull, which it uses to break through ...
See text. Osedax is a genus of deep-sea siboglinid polychaetes, commonly called boneworms, zombie worms, or bone-eating worms. Osedax is Latin for "bone-eater". The name alludes to how the worms bore into the bones of whale carcasses to reach enclosed lipids, on which they rely for sustenance. They utilize specialized root tissues for bone-boring.