Search results
Results from the WOW.Com Content Network
Further functions of the narwhal tusk are debated: while some biologists suggest that narwhals use their tusks in fights, others argue that they may be of use in feeding. [36] The tusk is also a highly innervated sensory organ with millions of nerve endings, allowing the narwhal to sense temperature variability in its surroundings. [30]
True horns are found mainly among: Ruminant artiodactyls. Antilocapridae ; Bovidae (cattle, goats, antelopes etc.). Giraffidae: Giraffids have a pair of skin covered bony bumps on their heads, called ossicones. Cervidae: Most deer have antlers, which are not true horns due to lacking a bone core and made of keratin.
Both species exhibit seasonal migrations, and they are most likely to overlap with one another in their summering grounds. [1] Beluga whales and narwhals use high frequency vocalizations for echolocation; while beluga whales typically utilize higher frequency vocalizations than do narwhals, their vocalization ranges are overlapping. [10]
1. Narwhals. Narwhals are known as the "unicorns of the sea" due to their long, spiral-like tusks, which are actually elongated teeth. These mysterious marine mammals inhabit Arctic waters and use ...
They do not have a true dorsal fin, but do have a narrow ridge running along the back, which is much more pronounced in the narwhal. They are highly vocal animals, communicating with a wide range of sounds. Like other whales, they also use echolocation to navigate. [2]
Most mammals with tusks have a pair of them growing out from either side of the mouth. Tusks are generally curved and have a smooth, continuous surface. The male narwhal's straight single helical tusk, which usually grows out from the left of the mouth, is an exception to the typical features of tusks described above. Continuous growth of tusks ...
Many Americans rely on tax-prep companies such as TurboTax and H&R Block to do their taxes each year. The new program is designed to compete with those programs and make filing easier and less ...
For premium support please call: 800-290-4726 more ways to reach us