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This is an accepted version of this page This is the latest accepted revision, reviewed on 27 September 2024. Group of animals including lepidosaurs, testudines, and archosaurs This article is about the animal class. For other uses, see Reptile (disambiguation). Reptiles Temporal range: Late Carboniferous–Present PreꞒ Ꞓ O S D C P T J K Pg N Tuatara Saltwater crocodile Common box turtle ...
Cloaca. A cloaca (/ kloʊˈeɪkə / ⓘ kloh-AY-kə), pl.: cloacae (/ kloʊˈeɪsi / kloh-AY-see or / kloʊˈeɪki / kloh-AY-kee), is the rear orifice that serves as the only opening for the digestive, reproductive, and urinary tracts (if present) of many vertebrate animals. All amphibians, reptiles, birds, and a few mammals (monotremes ...
Keeled scales of a colubrid snake (banded water snake; Nerodia fasciata) In zoology, a scale (Ancient Greek: λεπίς, romanized: lepís; Latin: squāma) is a small rigid plate that grows out of an animal 's skin to provide protection. In lepidopterans (butterflies and moths), scales are plates on the surface of the insect wing, and provide ...
e. The ZW sex-determination system is a chromosomal system that determines the sex of offspring in birds, some fish and crustaceans such as the giant river prawn, some insects (including butterflies and moths), the schistosome family of flatworms, and some reptiles, e.g. majority of snakes, lacertid lizards and monitors, including Komodo dragons.
The differences between humans and other species are so great that speculations about animal consciousness seem ungrounded. Many authors simply assume that an animal like a bat has a point of view, but there seems to be little interest in exploring the details involved.
Animal communication is a rapidly growing area of study in disciplines including animal behavior, sociology, neurology, and animal cognition. Many aspects of animal behavior, such as symbolic name use, emotional expression, learning, and sexual behavior, are being understood in new ways. When the information from the sender changes the behavior ...
In animal communication, an alarm signal is an antipredator adaptation in the form of signals emitted by social animals in response to danger. Many primates and birds have elaborate alarm calls for warning conspecifics of approaching predators. For example, the alarm call of the blackbird is a familiar sound in many gardens.
Nāga. In various Asian religious traditions, the Nagas (Sanskrit: नाग, romanized: Nāga) [1] are a divine, or semi-divine, race of half-human, half- serpent beings that reside in the netherworld (Patala), and can occasionally take human or part-human form, or are so depicted in art. Furthermore, Nagas are also known as dragons and water ...