| A | B |
| echolation | the sound wave device used by whales and submarines to find their prey |
| food chain | the interdependly linked order of predators and their prey in the cycle of life |
| Chumash | name of the native peoples off the coast of California that adapted to life near an ocean |
| vertebrate | animals having a internal backbone |
| invertebrate | animals not having a backbone |
| freshwater | describes animal and plant life in water from lakes, rivers and streams not containing much salt |
| saltwater | animal and plant life surviving only in salty bodies of water from the ocean |
| predator | a hunter |
| prey | the hunted |
| camouflage | color pigment adaptation that allows an animal to blend into their surroundings |
| extinction | when a particular species of animal or plant no longer exists in the world |
| endangered | when a plant or animal species has such a limited population in the world that extinction is a definite possibility |
| mammals | class of animals having live babies, hair or fur, breathing oxygen and being warm-blooded |
| fish | class of animals having scales, gills, laying eggs and being cold-blooded |
| reptile | class of animal with rough, scaly skin, lungs, egg-laying and cold-blooded |
| amphibian | class of animal with soft skin, lays eggs, lives near water and is cold-blooded |