Because P (parent) and Ch (child) elide gender distinctions, Gould substitutes two pairs of terms: F (father) and F (fatherling, or man's child); …

Experienced classroom teachers are well acquainted with the attention-seeker, the shy girl, the aggressive boy, the poor concentrator, the slow student […]

The Russian desman, which can weigh half a kilogram, is by far the largest member of the mole family—large enough to be sought for its fur.

However, recent work points to restricted intraciliary rather than cytoplasmic calcium effects subsequently regulating cellular sonic hedgehog signaling.