Causes of cirrhosis. Common causes of cirrhosis are long-term alcohol abuse, hepatitis B and C infection, and fatty liver disease. Of those, hepatitis B and C together are said to be the leading cause of cirrhosis (WHO).
Leatherbacks have downward pointing spines in their throat, which allows jellyfish to be swallowed, but prevents them from coming back up. Typical Lifespan: Leatherbacks reach maturity at approximately 13 to 14 years. Their average lifespan is unknown, but itâs thought to be at least 30 years. Habitat: Leatherbacks spend most of their lives at sea and sometimes look for prey in coastal waters.
NATURAL HISTORY. Globally, leatherback turtles are a critically endangered species; their numbers are only a quarter of what they were 20 years ago. The world population is estimated at 30,000 to 40,000 nesting females in the Atlantic, Pacific, and Indian Oceans.cientists estimate that commercial fisheries in the Pacific caught 4,200 leatherback sea turtles in 2000 alone. Until alternate fishing gear such as circle hooks are in widespread use, the most effective way to help turtles is to avoid buying seafood caught using fishing methods that place leatherbacks at risk.