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Hace 21 horas · The narwhal (Monodon monoceros), is a species of toothed whale, and the only member of the genus Monodon.The most prominent feature of the species is an adult male's long single tusk that can be up to 3 m (9.8 ft). The narwhal has a mottled pigmentation, with blackish-brown markings over a white background.Instead of a dorsal fin, the narwhal possesses a shallow dorsal ridge which is thought ...
Hace 21 horas · Menopause, also known as the climacteric, is the time when menstrual periods permanently stop, marking the end of reproduction. It typically occurs between the ages of 45 and 55, although the exact timing can vary. Menopause is usually a natural change. It can occur earlier in those who smoke tobacco. Other causes include surgery that removes both ovaries or some types of chemotherapy.
