ENN
Environmental News Network -- Know Your Environment
Why does the egg size of house sparrows vary so much? Isn’t it always an advantage to be big?
Perhaps not surprisingly, baby sparrows that hatch from large eggs are consistently bigger their small egg counterparts. They can store up more reserves if food becomes scarce. So you would think that it’s always a good idea to lay big eggs because your offspring would seem to have a greater chance of survival.
Flooding caused by rain falling on snowpack could more than double by the end of this century in some areas of the western U.S. and Canada due to climate change, according to new research from CU Boulder and the National Center for Atmospheric Research (NCAR).
When it rains, it pours, the saying goes. When it pours to excess, that’s when life gets messy. And possibly dangerous.
One by one, Dr. Chris Opio and Chandehl Morgan carefully remove trees from one-gallon buckets.
NOAA-supported scientists have determined that this year’s Gulf of Mexico “dead zone”— an area of low oxygen that can kill fish and marine life — is approximately 2,720 square miles.
A study by Simon Fraser University resource and environmental management researcher Jenn Burt reveals that sunflower sea stars play a critical role in the resilience of B.C.'s kelp forests, which are among the most productive ecosystems on Earth.
