The correct answer is option 'C' - Chameleon.

Chameleons are known for their long sticky tongues, which they use to catch their prey. Let's explore in detail why chameleons have this unique adaptation.

Adaptation of Chameleons

1. Tongue Structure:
The tongue of a chameleon is long and sticky. It is attached to the chameleon's mouth and can be rapidly extended outwards to catch prey. The tongue is covered in a sticky substance that helps it to adhere to the prey.

2. Hunting Technique:
Chameleons are primarily insectivores, and their long tongues are essential for capturing their prey. When a chameleon spots an insect, it focuses its eyes on the target and calculates the distance. Then, it rapidly extends its tongue towards the prey, catching it with the sticky tip. The prey sticks to the tongue, and the chameleon withdraws its tongue back into its mouth to consume the captured insect.

3. Prey Capture:
The sticky tongue of a chameleon is highly effective in capturing prey. It allows the chameleon to catch insects from a distance without having to move its entire body. This hunting strategy helps the chameleon to remain camouflaged and hidden from predators while still being able to feed on small insects.

4. Tongue Extension:
Chameleons have an incredible ability to extend their tongues rapidly. They can shoot their tongues out at astonishing speeds, reaching a distance longer than their body length. This rapid extension is made possible by the unique structure of their tongue muscles and the use of elastic energy.

5. Adhesive Pads:
In addition to the sticky substance on their tongues, chameleons also have specialized adhesive pads on their feet. These pads help them grip onto branches and surfaces, allowing them to move slowly and stealthily while hunting for prey.

Summary:
Chameleons have long sticky tongues that allow them to catch their prey effectively. This unique adaptation, along with their hunting techniques and adhesive pads, helps them survive in their natural habitats.