Characteristics are simply any inherent features or qualities of an organism. These can be physical, behavioral, or physiological. Examples include:
* Physical characteristics: height, eye color, fur color, wingspan
* Behavioral characteristics: social behavior, mating rituals, migration patterns
* Physiological characteristics: metabolism, blood pressure, hormone levels
Adaptations are specific characteristics that increase an organism's chances of survival and reproduction in its particular environment. They are the result of natural selection over many generations. Examples include:
* Camouflage: a chameleon's ability to blend with its surroundings
* Sharp claws and teeth: in a predator, helping it hunt
* Thick fur: in an arctic animal, providing warmth
In summary:
* All adaptations are characteristics, but not all characteristics are adaptations.
* Adaptations are special characteristics that have evolved to help an organism survive and reproduce in its environment.
* Characteristics are general features of an organism, not necessarily related to its survival.
Think of it this way: All cars have wheels (characteristic), but only some cars have four-wheel drive (adaptation) which is specifically useful for driving in snow.
