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Sex differences in humans have been studied in a variety of fields. Sex determination generally occurs by the presence or absence of a Y chromosome in...

Shorea robusta, the sal tree, sāla, shala, sakhua, or sarai, is a species of tree in the family Dipterocarpaceae. The tree is native to India, Bangladesh...

Insects have mouthparts that may vary greatly across insect species, as they are adapted to particular modes of feeding. The earliest insects had chewing...

Antisexualism is opposition or hostility towards sexual behavior and sexuality. Other terms whose meanings overlap or are synonymous or interchangeable...

Crotalus stejnegeri, commonly known as the Sinaloan long-tailed rattlesnake or just long-tailed rattlesnake, is a venomous pit viper species in the family...

This is a list of haplogroups of historic people. Haplogroups can be determined from the remains of historical figures, or derived from genealogical DNA...

The honeydew melon is one of the two main cultivar types in Cucumis melo Inodorus Group. It is characterized by the smooth, often green or yellowish rind...

Wild silks have been known and used in many countries from early times, although the scale of production is far smaller than that from cultivated silkworms...