Manatees can also die when they get caught in fishing nets.
Manatees only give birth every two to five years and they only have one calf at a time.
All of these activities take resources and habitats away from plants and animals.
Scientists estimate that in the 21st century 100 species will become extinct every day.
It is the only known food source of the larvae of the Karner blue. " image="image1"Wild lupine grows best in sandy soils where forest fires occasionally clear out old vegetation.
Fire helps keep shrubs low and clears the areas of plants like aspen and maple that can take over the area and create too much shade for lupine to grow.
The mongoose was brought into Hawaii by planters to help control rats in sugar cane fields.
The planters didn't realize that rats are nocturnal and the mongoose hunts in the day.
One of the strongest arguments for saving endangered animals is simply that we want to.
We get a lot of pleasure out of seeing and interacting with animals.