Listener Diksha wants to know: when an animal species is endangered, how do we know when it’s really gone? Professional frog counter and disease ecologist Jamie Voyles has answers.

Caller Leña had COVID-19 last October and temporarily lost her sense of smell. As it started to come back, she noticed something strange — fruity things smelled like burnt hair and condoms. Where are Leña’s mystery smells coming from? Rhinologist Simon Gane fills us in on COVID-related smell loss.

We asked you to share your fail tales, and you delivered. Now we need your help picking a winner. Thanks to Erica, Dallas, Ryan, Mary, Nasja, David, Samantha, and everyone who called to share their worst moments.