In the non-equatorial zones of the Earth, species concentrate their reproductive effort in the
more favorable season. A consequence of seasonal breeding is seasonal testis regression …

Gonadal sex differentiation proceeds by the interplay of various genes including the
transcription factors and secretory factors in a complex network. The sex-differentiating …

Talpid moles and spotted hyenas have become the paradigms of anatomical and behavioral
female masculinization. Females of many mole species develop ovotestes that produce …

The new concept of mammalian sex maintenance establishes that particular key genes must
remain active in the differentiated gonads to avoid genetic sex reprogramming, as described …

Simple Summary In temperate zones of the Earth, most species reproduce in seasons
providing the most favourable environmental conditions. Producing gametes is expensive in …

In males of seasonally breeding species, testes undergo a severe involution at the end of
the breeding season, with a major volume decrease due to massive germ-cell depletion …

Sertoli cell morphology has been thoroughly reviewed in the past from basic light and
electron microscopy viewpoints, all of which pointed out the uniqueness of this “mother cell” …

Testes of seasonally breeding species experience a severe functional regression before the
non-breeding period, which implies a substantial mass reduction due to massive germ-cell …

Simple Summary The intermediate roundleaf bat, Hipposideros larvatus, plays an ecological
role in controlling insect populations. Studying its reproductive patterns, specifically …

Both hypothalamic neurotransmitters and serum steroid hormones are impacted by
photoperiod and have effects on physiology and seasonal reproductive. However, the …