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Livyatan is an extinct genus of macroraptorial sperm whale containing one known species: L. melvillei.The genus name was inspired by the biblical sea monster Leviathan, and the species name by Herman Melville, the author of the famous novel Moby-Dick about a white bull sperm whale.
A pod of six sea creatures surprised whale watchers in Kona, Hawaii, on April 17. That morning, a boat from Hawaiian Adventures Kona was about ten miles offshore when the crew spotted several tall ...
Livyatan probably targeted medium-sized whales ranging in size from 7–10 m (23–33 ft). Macroraptorials probably competed with the extinct giant shark megalodon for the same food sources. [7] [10] [11] [12] In sperm whales, the supracranial basin holds the spermaceti organ, a series of oil and wax reservoirs which aids in echolocation.
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A third endangered whale has been spotted entangled in fishing gear off the East Coast, marking an alarming end to the year for a species threatened with extinction. The whales are North Atlantic right whales, which number fewer than 400 and are vulnerable to ship collisions and entanglement in gear.
The National Oceanic and Atmospheric Administration has even declared the waters along Florida and Georgia a “critical habitat” for right whales, which are among the most endangered species of ...
The family Balaenidae, the right whales, contains two genera and four species. All right whales have no ventral grooves; a distinctive head shape with a strongly arched, narrow rostrum, bowed lower jaw; lower lips that enfold the sides and front of the rostrum; and long, narrow, elastic baleen plates (up to nine times longer than wide) with fine baleen fringes.
The right whales are considered to be the 149th and 150th documented cases in the ongoing North Atlantic right whale Unusual Mortality Event (UME), which includes dead, seriously injured or health ...