The bizarre orientation of the planet, which orbits the sun tipped on its side, reveals that its inner core has a stronger influence on its weather patterns than the distant star. The green and blue regions show where the atmosphere is clear, allowing sunlight to penetrate deep into Uranus.
One creative answer to why is a raven like a writing desk is they both come with inky quills. Lewis Carroll never intended an answer to the question of why a raven is like a writing desk. The raven-writing desk riddle hails from Lewis Carroll's Alice's Adventures in Wonderland.
Look for the Common Raven's heftier bill, shaggy throat feathers, more slender, pointed wings, and longer, wedge-shaped tail. The crow-sized Chihuahaun Raven of the desert Southwest has a shorter bill, longer feathers around the bill, and less deep voice. Where these two species overlap, the Chihuahuan Raven tends to be in desert at lower elevations and the Common Raven in forests at higher elevations. And here's a useful behavior clue: ravens cruise along roads looking for roadkill.