2024年12月6日 · lizard, (suborder Sauria), any of more than 5,500 species of reptiles belonging in the order Squamata (which also includes snakes, suborder Serpentes). Lizards are scaly-skinned reptiles that are usually distinguished from snakes by the possession of legs, movable eyelids, and external ear openings.

2024年12月6日 · Lizard - Reptile, Habitats, Adaptations: Most lizards reproduce by laying eggs. The clutch size generally varies with the mother's size, age, and condition. Lizard eggs are usually leathery-shelled and porous. Some lizard species show viviparity.

2024年12月6日 · Lizard - Adaptations, Habitats, Behavior: The skull is derived from the primitive diapsid condition, though lizards have greater flexibility in the jaw. Most lizards have sharp, tricuspid teeth adapted for grabbing and holding.

2024年12月6日 · Lizard - Reptile, Adaptations, Species: The cladistic approach to systematics changed the way in which evolutionary relationships among lizard families and other organisms are examined. Suborder Sauria has about 4,450 species.

2024年12月6日 · Lizard - Adaptations, Behavior, Ecology: Environmental variables that affect lizards are access to and retention of water, day length (photoperiod), and rainfall. Different lizards that occupy the same area separate themselves along …

lizard, Any of about 5,500 species of reptiles constituting the suborder Sauria. They are most diverse and abundant in the tropics but are found from the Arctic Circle (one species) to southern Africa, South America, and Australia.

2024年12月6日 · Parthenogenesis in lizards was first discovered in all-female races of Lacerta in the Caucasus, but it is now known to occur in all-female species of whiptail lizards (Aspidoscelis) in the southwestern United States and parts of Mexico, several other Teiidae and Gymnophthalmidae (spectacled lizards or microteiids) in South America, and a few ...

2024年12月6日 · Lizard - Camouflage, Defense, Adaptations: Many birds, mammals, invertebrates, and other reptiles prey on lizards. In response, lizards have a variety of defensive strategies. Ritualized displays have evolved in many species, and often males have conspicuous head and body ornamentation.

2025年1月13日 · Reptile - Adaptation, Diversity, Conservation: Reptiles have a significant economic value for food and ecological services. Reptiles like lizards control pests in homes and gardens; snakes prey on rodents. Turtles, crocodiles, snakes, and lizards are regularly harvested in many tropical areas.

2025年1月17日 · Snake, any of more than 3,400 species of reptiles distinguished by their limbless condition and greatly elongated body and tail. They are classified with lizards in the order Squamata and represent a lizard that, over the course of evolution, has undergone structural reduction, simplification, and loss as well as specialization.