Reptiles exhibit remarkable reproductive diversity, with many species giving birth to live young rather than laying eggs. This viviparity, particularly common in lizards and snakes, involves internal ...

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 ...

From three morphs to one: Across 220 populations, the pattern is consistent: where "Hulk" arrives, yellow and orange throat ...