External genitalia are found in each of the major clades of amniotes. The phallus is an
intromittent organ that functions to deliver sperm into the female reproductive tract for …

The development of a reliable non-invasive method of crocodile semen collection is
fundamental for assessing male fertility and for implementing the benefits of artificial …

The broad-snouted caiman (Caiman latirostris) is a crocodilian species that inhabits South
American wetlands. As in all other crocodilians, the egg incubation temperature during a …

In most animals, reproduction by internal fertilization is facilitated by an intromittent organ,
such as the penis in amniote vertebrates. Recent progress has begun to uncover the …

The intromittent organs of most amniotes contain variable‐volume hydrostatic skeletons that
are stored in a flexible state and inflate with fluid before or during copulation. However, the …

An intromittent phallus is used for sperm transfer in most amniote taxa; however, there is
extensive variation in external genital morphology within and among the major amniote …

The distal part of the crocodilian phallus consists of a bulbous glans containing well-
developed vascular tissues that can inflate before or during sexual activity, enlarging and …

Male intromittent organs serve two primary reproductive functions: the physical entry into the
female body during copulation and the effective delivery of gametes resulting in internal …

The male crocodylian phallus, an intromittent organ, transfers sperm to the female cloaca
during reproduction. During copulation, the distal phallic glans inflates via blood-filled …

There are few scientific reports on the histology of the phallus of ratite birds. The aim of this
study was to conduct a histochemical analysis to determine the distribution of smooth …