Rex · Jul 17, 2017 · 4:38 PM UTC

Happy Monday!

Rex · Nov 21, 2016 · 4:17 PM UTC

Have a great Thanksgiving week!

Rex · Nov 7, 2016 · 5:53 PM UTC

Happy Monday!

Rex · Oct 24, 2016 · 4:23 PM UTC

Monday Humor!

Rex · Oct 3, 2016 · 3:59 PM UTC

Safety First!

Rex · Sep 12, 2016 · 2:36 PM UTC

Happy Monday!

Rex · Sep 6, 2016 · 2:50 PM UTC

For all of the teachers needing a little back to school humor this morning.

Rex · Aug 29, 2016 · 2:38 PM UTC

For my teacher friends.

Rex · Aug 8, 2016 · 4:04 PM UTC

I'm too cool to use the buttons. What is your style?

Rex · Aug 1, 2016 · 2:55 PM UTC

Happy first day of August!

Rex · Jul 15, 2016 · 2:53 PM UTC

Rex · May 23, 2016 · 2:27 PM UTC

Happy Monday!

Rex · May 16, 2016 · 4:14 PM UTC

Getting ready for STEM Solutions in Baltimore.

Rex · Apr 11, 2016 · 4:51 PM UTC

Tetris anyone?

Rex · Mar 29, 2016 · 2:17 PM UTC

I'm headed to #NSTA16. Want a selfie with Rex? Stop by Booth #1336. #NSTA #science

Rex · Mar 21, 2016 · 3:01 PM UTC

Happy Spring!

Rex · Feb 29, 2016 · 3:42 PM UTC

Thanks Neil for explaining leap years. Apparently it isn't just a time to hop around like a bunny. youtube.com/watch?v=yd1i3vkk…

Rex · Feb 15, 2016 · 4:50 PM UTC

Honoring a great scientist on this President's Day.

Rex · Feb 8, 2016 · 5:38 PM UTC

Not a monkey, but completely adorable. Happy New Year! livescience.com/53472-giant-…

Rex · Jan 25, 2016 · 4:19 PM UTC

A bit of humor as we eagerly await the arrival of spring.