Ecosystems
Ecosystems
Why are wetlands important?
Why are pollinating bats, birds, bees, butterflies, and other animals important?
What is an invasive species and why are they a problem?
What is cheatgrass and how is it harmful?
Ecosystems
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Why do animals and plants become endangered? Why do animals and plants become endangered?
Although extinctions occur naturally, the current rate of plant and animal extinctions is much higher than the natural or historical rates. Habitat loss is the primary cause of higher extinction rates. Other causes include habitat changes, over-exploitation of wildlife for commercial purposes, the introduction of harmful nonnative species, pollution, and the spread of diseases. Learn more...