Northern extremes. Camouflage is a key survival strategy for many animals. But what do you do if your habitat changes dramatically with the seasons? From high mountain habitats to the Arctic north, animals have developed a seasonal wardrobe to stay under cover — and stay alive.
Millions of Brazilian free-tailed bats spend summers in the Bracken Cave near San Antonio, Texas. A study finds they're arriving earlier and staying longer as the planet warms. Credit: Ann Froschauer/USFWS
Global sea level rise is accelerating incrementally over time rather than increasing at a steady rate, as previously thought, according to a new study based on 25 years of NASA and European satellite data. Credit: NASA's Goddard Space Flight Center/Kathryn Mersmann
The purpose of the core curriculum is to bring students to a more complete and satisfying understanding of who they are. They are natural, social and creative beings who come to have the lives they do through a very long process of physiological biological and cultural evolution. If the point is for students to know themselves then they should be given the resources to orient their learning around a narrative of this Epic of Evolution.