Pangolins are mammals, although they look like reptiles. With their scaly protective skin, pangolins can roll into a tight ball to confuse and deter predators. Pangolins are mostly noctural, only coming out at night. They eat insects much like an ant eater. Which sentence could be added to the paragraph while maintaining a consistent tone?

Pangolins are pretty awesome examples of unique adaptations in nature.
Pangolins are cool examples of unique adaptations in nature.
Pangolins are hilarious examples of unique adaptations in nature.
Pangolins are impressive examples of unique adaptations in nature.