Meet the Fish That Walk on Land

ACS Reactions catch up with experts they talked to at the start of the pandemic and ask, "what do we know now that we didn’t back then?"

A new fossil specimen of Vilevolodon diplomylos, an ancient herbivore similar to a flying squirrel, may push the origin of mammals back millions of years earlier than previously thought.

In this installment of Teach Me in 10, we're joined by Dr Seth Lederman, a physician, scientist and the CEO of Tonix Pharmaceuticals. Dr Lederman talks us through the main types of COVID-19 vaccines that are currently available, explaining the differences between "traditional" vaccines and "new-era" vaccines.