Adaptations

Fitness : the ability of an organism to pass on genes to the next generation.

An adaptation is a genetically controlled characteristic that increases an organism's fitness. An adaptation is a characteristic that improves an organism's chances of passing on its genes, usually by leaving offspring.

Adaptations can be structural, physiological, or behavioural

Structural adaptations are characteristics of body form including skeleton, size, shape, number of limbs, body covering, and so on

Physiological adaptations deal with the functions of the body.

Behavioural Adaptation

Mimicry Camouflage