There are probably fewer than 3000 manatees (Trichechus manatus) left in the world. Which would cause extinction of species?

Inbreeding happens when there are too few breeding individuals in a population. This can lead to a loss of genetic diversity, making the population more susceptible to disease and other environmental stressors. In the case of manatees, with fewer than 3000 individuals left in the world, inbreeding is a major threat to the species' survival.

Loss of habitat is another major threat to manatees. Manatees rely on shallow, warm waters for survival, and their habitat is being destroyed by human activities such as coastal development, pollution, and climate change. As their habitat disappears, manatees have fewer places to live and feed, which can lead to population decline and eventual extinction.

Hunting and poaching are also significant threats to manatees. Manatees are hunted for their meat, skin, and oil, and they are often killed as bycatch in fishing gear. In some areas, manatees are also killed intentionally by humans who view them as pests. Hunting and poaching can reduce manatee populations and contribute to the species' extinction.

Climate change is a growing threat to manatees. As the Earth's climate changes, sea levels are rising and water temperatures are increasing. This can disrupt manatee feeding and breeding patterns and make them more vulnerable to disease. Climate change can also lead to changes in coastal habitats, which can further threaten manatee populations.

By addressing these threats, we can help to protect manatees and prevent their extinction.