Leafy Sea Dragons
These stunning sea dragon pictures illuminate their mysterious beauty and extraordinary adaptations. The near-invisibility of their fins gives the sea dragons the appearance of floating seaweed that is drifting with the currents. Instead of scales, they have protective armor to ward off predators. The row of spines along their backs can also wound attackers. At other times they will curl into balls like porcupines in self defense. Truly extraordinary creatures.
This is the Costa Rican variable harlequin toad (Atelopus varius), also known as the clown frog (in spite of the fact that it is a true toad). They once ranged from Costa Rica to Panama, but are now listed as critically endangered and reduced to a single population in Costa Rica.
The variable harlequin toads conspicuous colouring serves as a warning to predators of the toads toxicity.