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In many mammals, the nape bears a loose, non-sensitive area of skin, known as the scruff, by which a mother carries her young by her teeth, temporarily immobilizing it during transport. In the mating of cats , the male will grip the female's scruff with his teeth to help immobilize her during the act, [ 1 ] a form of pinch-induced behavioral ...
The head is uniform dark olive grey to olive brown above, while the sides are lighter. There is an oblique black band below the eye as well as a larger black band on the side of head, above the corner of mouth. The nape bears a distinct, thick, and black backward-pointing chevron. The anal scale is divided and the subcaudal scales are paired. [3]
A hydrophobic cavity in NAPE-PLD provides an entryway for the substrate NAPE into the active site, where a binuclear zinc center orchestrates its hydrolysis. Unexpectedly, the structure unveils bile acids bind the membrane enzyme, enhancing dimer assembly and enabling catalysis.
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Its throat, face, wings and iris are black as are its legs and bill. The female is olive brown overall, lighter below, with a light buffy throat and greyish-brown crown and nape. As do many members of its family, the small vivid niltava bears distinct rictal bristles at the base of its bill. [4] Illustration by Joseph Wolf
Bear habitats are generally forests, though some species can be found in grassland and savana regions, and the polar bear lives in arctic and aquatic habitats. Most bears are 1.2–2 m (4–7 ft) long, plus a 3–20 cm (1–8 in) tail, though the polar bear is 2.2–2.44 m (7–8 ft) long, and some subspecies of brown bear can be up to 2.8 m (9 ...
Ursus is a genus in the family Ursidae that includes the widely distributed brown bear, [3] the polar bear, [4] the American black bear, and the Asian black bear. The name is derived from the Latin ursus , meaning bear .
Body plumage is mid-to-dark chocolate brown, heavily spotted with white on face, neck, mantle and underparts. It has a large white loral spot, a white eye-ring, blackish-brown cap extending onto the nape, dark blackish wings with a greenish-blue gloss, all white vent, and dark tail with white corners above and a white terminal band on the ...