Melting ice caps and ravaged populations.
Recently, periodic outbreaks of deadly diseases that can infect humans and apes, like Ebola, have begun to ravage populations of chimpanzees and gorillas.
Cholera, a disease of the intestinal lining, continues to ravage populations in the developing world--even though it is easily treated with fluids and antibiotics.
It has ravaged populations across countries and socio-economic status, hitting the parts of the world hardest where access to even basic health care and infrastructure are at best, limited.
The hemlocks in Maine are also notable, as the woolly adelgid, which has ravaged populations further south, has not come into the state yet, and may be unable to make it so far north due to the cold climate.
The Chipewyans who traded with the company suffered severely due to the company's inability to provision them, and by an ongoing smallpox epidemic that was ravaging Indian populations throughout North America; the Chipewyans lost half their population by some estimates.
The two frogs are the island's only known survivors of an outbreak of the deadly chytrid fungus disease, a pandemic ravaging amphibian populations worldwide.
Two kinds of mites have been ravaging bee populations in the United States for the past decade, and my bees are not immune.
Scientists suspect the lineage of the chytrid fungus that has been ravaging frog populations became more virulent in the 1980s, after it hybridized with another lineage.
With AIDS ravaging the populations of many Caribbean islands, Mrs. Bush sought to draw attention to the Bush administration's AIDS relief initiative, which has funneled billions of dollars to Haiti and other affected countries, mostly in Africa.
