Mammals can be BIG and small , live everywhere, and anywhere. To learn about mammals here is a link for a amazing site: http://animals.nationalgeographic.com/animals/mammals/
1 in 4 mammals are threatened to go extinct.
How you can help:
1. Plant some trees.
Lots of animals are going homeless through deforestation.
Planting a tree helps provides homes for animals.
2. Volunteer at a local animal shelter.
You can help animals any day by volunteering.
3. Do not buy any animal products.
Don't buy any fur, leather, or ivory. These are all made from animals.
Here are some links of great animal protection Organizations: