By Justin Li, the document discusses extinct animals and the causes of their extinction. Climate change, acid rain, and cosmic radiation can all contribute to extinction. The largest extinct animal was Argentinosaurus, and human activity has increased extinction rates of both animals and plants, with the most recent being the Baiji river dolphin. To help endangered species, their habitats can be restored, protective laws can be created, and they can be protected from predators. Helpful websites on these topics are also provided.

1. • By: Justin Li
Extinct Animals

2. Extinct animals
• Causes of extinction
Extinction Fact
How to help endanger animals

3. Causes of Extinction
• Climate cooling and heating
• Acid rain
• Cosmic radiation

4. Extinction Facts
• Largest extinct animal is Argentinosauras
• We can effect lots of things that increase the extinction
rate
• Many plants also have gone
extinct
• The most recent extinct animal is the Baiji river dolphin

5. What we do the help the
endangered animals
• Restoring the animals habitat and strength
• We create laws to protect them
We protect them from their predators

6. Extinct animals
• What is the cause of extinction
• Extinction facts
• How we help endanger animals

7. Helpful Websites
• www.nwf.org
• extinct-animal-facts.com
• people.uwec.edu