A macroevolutionary perspective of cryptic coloration in sexually dichromatic grasshoppers of the genus Sphenarium (Orthoptera: Pyrgomorphidae).

Background matching and disruptive coloration are defense mechanisms of animals against visual predators. Disruptive coloration tends to evolve in microhabitats that are visually heterogeneous, while background matching is favored in microhabitats that are chromatically homogeneous. Controlling for the phylogeny, we explored the evolution of the coloration and the marking patterns in the sexual dichromatic and widely distributed neotropical grasshoppers of the genus Sphenarium.

Insights Into Pediatric Secretory Carcinoma of the Salivary Gland: A Case Report.

Secretory carcinoma of the salivary gland (SCSG) is a rare head and neck tumor in adults and exceptional at the pediatric age. Its varied histological subtypes and distinct clinical presentation pose diagnostic and therapeutic challenges. Therefore, standardized guidelines are of utmost importance for the care of these patients, especially in children.

Experience in the Management of Complex Apple Peel Intestinal Atresia in a Limited-Resource Health Center in Mexico.

Surgical treatment of complex intestinal atresia is challenging. Moreover, multiple surgical techniques have been described to treat these congenital malformations. As no single/universal technique is useful for every patient, individualized surgical treatment for these complex cases is mandatory.

Mate fidelity in a polygamous shorebird, the snowy plover ().

Social monogamy has evolved multiple times and is particularly common in birds. However, it is not well understood why some species live in long-lasting monogamous partnerships while others change mates between breeding attempts. Here, we investigate mate fidelity in a sequential polygamous shorebird, the snowy plover (), a species in which both males and females may have several breeding attempts within a breeding season with the same or different mates.