Tough and dry scaly skin

Apuntes

**Tough and Dry Scaly Skin** Scales provide protection and prevent the animal from becoming dry, which helps them adapt to their environment. --- **Reptiles** *Main Groups:* - Saurians (lizards) - Ophidians (snakes) - Chelonians (turtles) - Crocodilians (crocodiles) *How do they live?* - Ectothermic - Use lungs to breathe - Oviparous — lay amniotic eggs that contain an amnion or a bag filled with liquid where the embryo floats. This provides nutrients and protection. This type of egg allows reptiles to reproduce outside water. *Additional Characteristics:* - Some are carnivores, and some use venom to kill prey - Have biops (likely a typo; possibly "bodies" or "bony structures") - Wings (note: this may be an error; reptiles generally do not have wings, unless referring to specific species like flying lizards) - Foot limbs with claws - Migratory animals - Terrestrial vertebrates - Strong beak (note: beaks are characteristic of birds, not reptiles; this may be an error) --- **Birds** *How do they live?* - Endothermic - Use lungs to breathe - Lay amniotic eggs *Body Characteristics:* - Aerodynamic body - Wings - Body covered with feathers - Wing-shaped - Scales (on legs and f...