Lesson 28: Animal Adaptations and Diet
Teeth, beaks, claws, and body shapes provide clues about how animals obtain food. The lesson compares herbivores, carnivores, and omnivores and considers how these clues can be checked against other evidence.
Key Ideas
- Inherited traits can help animals obtain food. Body structures provide clues about diet, which should be checked against other evidence.
- Herbivores eat plants, carnivores eat animals, omnivores eat both. Each group has adaptations that match its diet.
- Eye position can suggest visual abilities and feeding behavior, but it does not identify diet by itself.
- Adaptations go beyond mouths: body shape, limbs, coloring, and behavior all reflect how an animal survives.
- Fossil teeth, jaws, wear, preserved meals, and other evidence help scientists infer extinct animals’ diets.
Vocabulary
- Adaptation: An inherited trait that can improve survival or reproduction in a particular environment.
- Herbivore: An animal that feeds mainly on plants or plant material.
- Carnivore: An animal that eats other animals.
- Omnivore: An animal that eats both plants and animals.
- Predator: An animal that hunts and eats other animals.
- Prey: An animal that is hunted and eaten by another animal.
Discussion Questions
- How can an animal's teeth give us clues about what it eats? What might flat teeth tell us compared with sharp teeth?
- Why do you think predators and prey often have their eyes in different positions? How does each arrangement help them survive?
- What is the difference between a herbivore, carnivore, and omnivore? What adaptations would you expect each one to have?
- If you discovered a fossil with very large, sharp teeth, what could you infer about the animal? What other evidence would you want before being sure?
- Pick an animal you know. What adaptations does it have that help it find, catch, or eat its food?