http://www.pnas.org/content/107/40/17071/F1.medium.gif
wget ...
--2016-06-15 12:24:40--  http://www.pnas.org/content/107/40/17071/F1.medium.gif
Resolving www.pnas.org... 104.232.27.157
Connecting to www.pnas.org|104.232.27.157|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 71919 (70K) [image/gif]
Saving to: “/ahuman/mediawiki/ahwiki/images/ext/6c0fbccf57032694ec1009c388ac9561.gif”

     0K .......... .......... .......... .......... .......... 71%  136K 0s
    50K .......... ..........                                 100% 12.1M=0.4s

2016-06-15 12:24:40 (191 KB/s) - “/ahuman/mediawiki/ahwiki/images/ext/6c0fbccf57032694ec1009c388ac9561.gif” saved [71919/71919]