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
Inspirations for Job One For Humanity Evolutioneers
The SECOND POWER is that of allurement. It's the way in which the whole universe holds itself together. At the level of the galaxies, we call this the gravitational interaction. Gravity is what keeps the galaxies in place; it's what draws the stars together. At the level of molecules, it has a different name: it's called the electromagnetic interaction. The atoms and molecules in our body are being held together moment by moment by the attractive force of electromagnetism. The word allurement points to all these various forms of attraction.