This is one of my favorite evolutionary riddles. The Chondrichthyes, encompassing sharks, skates, and rays, look like fish. They have gills and swim in the ocean like fish. We call them fish. So they must be fish, right? Well, It depends on how you define fish. If you assign fish-dom based on things they all… Continue reading How are sharks equally related to bony fish and us?
For my brilliant friend, Iris, who rightly calls my scientific perspective two parts beautiful and inspiring and one part absolutely horrifying, and who really, really likes reminding me that bees don’t have lungs. On April 15th, 2019, the world watched in horror as a thousand years of sacred innovation and artistry collapsed in ash and… Continue reading Why don’t bees have lungs?