| A | B |
| amphibian | any of a group of cold-blooded vertebrate animals (as frogs and toads) that have gills and live in water as larvae but breathe air as adults: skin is usually slimy and moist |
| reptile | a cold-blooded animal (as a snake, lizard, turtle, or alligator) that breathes air and usually has the skin covered with scales or bony plates |
| bird | vertebrate animals that have feathers, wings, and beaks. Like all vertebrates, they have bony skeleton |
| fish | an animal that lives in water and has fins for swimming and gills for breathing. Fish are cold-blooded animals with skeletons inside their bodies. |
| mammal | a warm-blooded animal (as a dog, mouse, bear, whale, or human being) with a backbone that feeds its young with milk produced by the mother and has skin usually more or less covered with hair. |
| vertebrate | an animal with a backbone. Fishes, amphibians, reptiles, birds, and mammals, including humans, are all vertebrates. |
| invertebrate | animals without a backbone or bony skeleton. They range in size from microscopic mites and almost invisible flies to giant squid with soccer-ball-size eyes. |
| diurnal | awake during day |
| nocturnal | awake at night |
| cold blooded | having blood whose temperature changes with the temperature of the air or water. Animals such as fishes, snakes, and lizards are cold-blooded. |
| warm blooded | able to keep up a relatively high constant body temperature that is independent of that of the surroundings Birds and mammals (humans) are warm-blooded. |
| predator | an animal that lives mostly by killing and eating other animals. |
| prey | an animal that is hunted or killed by another animal for food. |
| photosynthesis | process in which green plants use sunlight to make their own food. |
| inherited trait | genetic characteristics that you get from your parents like hair color, freckles, or height |
| learned behavior | these are behaviors you learn from watching others like your mother or father |
| instinctual behaviors | a behavior that you are born able to do like a dog drooling when it sees a bone |
| adaptation | a special skill which helps an animal to survive and do everything it needs to do. These can be physical like a cat getting a thicker coat in winter or behavioral like penguins grouping together for protection |
| camouflage | to make an animal look like its surroundings |
| mimicry | when you make yourself look like something else that is harmful or bad tasting. This is a protection from predators. |
| exoskeleton | “outside skeleton.” Many invertebrates, or animals without backbones, have exoskeletons. ... Insects have exoskeletons made of a substance called chitin. |
| endoskeleton | inside skeleton: a structure that holds an animal from inside. ... An endoskeleton allows the body to move and gives the body structure and shape |
| coloration | using bright colors or patterns as a warning to predators that you are poisonous or bad tasting like a dart frog |
| amphi | both |
| noct | night |
| aqu | water |
| avi | bird |
| can | dog |
| carn | flesh |
| herb | plant |
| omni | all |
| habit | to live |
| exo | outside |
| endo | inside |
| therm | heat, warm |
| photo | light |