Today we are going to learn about a fourth reason why species become endangered and/or extinct.

What is an introduced specie?

http://www.bagheera.com/inthewild/classroom/class_extinction_introduced.htm

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http://www.bagheera.com/inthewild/van_anim_numbat.htm

https://invasives.org.au/blog/invasive-species-greatest-threats-australias-endemic-terrestrial-mammals/