South Asian river dolphin The sphincter-like structure is capable of sensing light, and may be able to sense the direction from where the light was emitted. However, the muddy waters, or low light conditions, that the "Platanista gangetica" inhabit negate the use of the little vision that remains. The Ganges subspecies shows object-avoidance behavior in both the consistently heavily murky waters of its habitat and in clear water in captivity, suggesting that it is capable of using echolocation effectively to navigate and forage for prey. However, there is limited information on how extensively vocalization is utilized between individuals. This subspecies of river dolphin is
California Endangered Species Act 2015 CESA lists 132 land plant species as Endangered, 22 as Threatened, and 64 as Rare. No species are currently candidates for listing. California's endangered species act is considered superior to similar acts enacted in other states due to its comprehensive design, its involvement in the pursuit of prevention, and for its cooperative relationships with programs such as Natural Community Conservation Planning (NCCP). California Endangered Species Act In 1970 California became one of the first states in the U.S. to implement an act that conserves and protects endangered species and their environments. The California Endangered Species Act (CESA) declares that