How does the rainfall of grasslands like this compare to deserts and forests? 2. how does the behavior of communal (group) calving the survival of mongolian gazelles? 3. why is it important for gazelles to be "born to run" in an ecosystem like the mongolian plains?

emerald ash borer

the emerald ash borer is a green buprestid or jewel beetle native to north-eastern asia that feeds on ash species. females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years. hope this !

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".