Okay, this isn’t a long or serious post—I just wanted to share something fun with my fellow science readers and friends here on Substack.
As some of you may know, I work at Colossal Biosciences. We’re a biotech company focused on bringing back extinct species, most famously, the Woolly Mammoth, Thylacine, and Dodo Bird. So, de-extinction. While we have incredible scientists tackling some of the most ambitious projects in genetics, our marketing team is equally brilliant when it comes to science communication.
To celebrate Valentine’s Day, some of our talented graphic designers put together some fun, science-themed cards, and I couldn’t resist sharing a select few with you all. They are posted on Instagram directly - linked here. But in case you do not have Instagram, I have added some screen captures below with the appropriate credit.
Whether you’re spending the day with someone special or just appreciating the wonders of science, I hope these bring a smile.
Enjoy, and Happy Valentine’s Day! 💙
P.S. If you like these, you might enjoy following Colossal on Instagram or X for more great science content or if you want to learn more about de-extinction!


Late to this, but haha really love the thylacine one!
I have a parasocial relationship with a Substack user, can you guess who it is?