Fulfilling the role of the vulture, schools of piranha keep the river clean by consuming dead or injured animals, insects, snails, scraps and even plants. Their razor-sharp teeth can strip flesh from a large animal in minutes, but they themselves are commonly eaten by local people who use the fishes’ jaws as scissors.
Zalophus californianus California Sea Lions are mammals. They must breathe at the surface and hold their breath while underwater, so they are specially adapted…
Sauromalus varius An example of island gigantism, they are the largest of the five species of chuckwalla and are considered the most endangered. Once,…
