Fleas feed other animals like birds,frogs, spiders, and snakes. so do mosquitoes.
While it is true nature is adaptable and generally makes no mistakes, humans can make mistakes by introducing species into the environment. Emerald ash beetles and house sparrows are good examples of this.
While it is true nature is adaptable and generally makes no mistakes, humans can make mistakes by introducing species into the environment. Emerald ash beetles and house sparrows are good examples of this.