2.2.2. Biotic factors in ESD -- 2.2.3. Mechanisms underlying ESD -- 2.2.3.1. Stress-mediated regulation of ESD -- 2.2.3.2. Epigenetic regulation of ESD -- 2.3. Polygenic sex determination -- 3. Sexual ...

In a lab at the University of Sydney, a female yellow-bellied three-toed skink first laid eggs, then gave birth to a live baby, all part of the same pregnancy. This is the first time biologists have ...

Parthenogenesis, a form of asexual reproduction in which an egg develops in the absence of fertilisation, has traditionally been associated with invertebrates. However, recent discoveries have ...

Viviparity, the live-bearing mode of reproduction, has evolved independently in several vertebrate lineages, including squamate reptiles and seahorses. In reptiles, evolutionary transitions from ...

What really did come first--the chicken or the egg? Birds' reproductive biology is dramatically different from that of any other living vertebrates, and ornithologists and paleontologists have long ...

Asexual reproduction, in which females reproduce without males by cloning themselves, has been documented in multiple species ...

WASHINGTON — An all-female freshwater fish species called the Amazon molly that inhabits rivers and creeks along the Texas-Mexico border is living proof that sexual reproduction may be vastly ...

This study is led by Prof. Jian-Fang Gui (Institute of Hydrobiology, Chinese Academy of Sciences). Polyploidy is generally thought to be a main driving force of speciation, as the polyploids possess ...

Roubik, David Ward. 1993. "Direct Costs of Forest Reproduction, Bee-Cycling, and the Efficiency of Pollination Modes." Journal of Biosciences, 18, (4) 537–552.

Melanie Laird receives funding from The University of Otago. Camilla Whittington receives funding from the Australian Research Council. University of Sydney and University of Otago provide funding as ...

In the debate over human origins and the nature of sexual reproduction, religious and scientific perspectives often diverge. The Bible claims man came first, with women derived from man’s rib. Yet, ...