Looks like your Mac browser has 3D graphics (WebGL) disabled.
Please use FireFox or Chrome or simply enable 3D graphics in Safari by following these steps:
Safari 8 (Yosemite)
Change the blocking policy for future visits:
Choose Safari >
Preferences
Click
Security
Check
Allow WebGL
Optionally, click on
Website Settings
next to Allow WebGL
Earlier versions of Safari
Choose Safari >
Preferences
Click
Advanced
.
Check
Show Develop menu in menu bar
at the bottom of the window.
Choose Safari >
Develop
Select
Enable WebGL
.
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2016
BioDigital.
Humanely made in NYC.