Great graphic by Nicolle Rager Fuller for the NSF. It accompanies a fascinating article about a researcher at the University of British Colombia who is studying bar-headed geese to understand how they can migrate over the Himalayas each year.
Why is it so good? Like the best graphics, you need not read the article to get the basic message: Bar-headed geese fly almost as high as Mt. Everest and commercial airliners. And it provides context galore: light aircraft, geese, ducks, and songbirds all fly significantly lower. The only other species that top Bar-headed geese in terms of height are some cranes and swans. So well done.
This is a neat dynamic map by a fellow illustrator, Paul Mirocha. It shows the fall and spring migrations of the monarch butterfly, an impressive trek that covers thousands of miles each year. I was aware of the overwintering grounds in Mexico, but this map clearly shows two other important sites in California and Florida. It’s interesting to note that there appear to be two distinct populations separated by the Rockies. Great map, very intuitive. My only question is the use of the green and the orange. I recently learned my dad is colorblind. He can’t see the numbers in images like this:
(Ishihara Colorblind Test courtesy of Matt Britt, Wikipedia Commons)
I’m going to send him this map and see if he can distinguish between the green and the orange arrows. Will let you know what he says! In the meantime, anyone know of a filter you can run images through to see if they are distinguishable for someone with this type of colorblindness? That would be interesting…