The conservation movement has been around since the 1800s. For Earth Day, we dive into how it’s changed. Plus, billions of T-rexes could have roamed the Earth. And, SciFri Book Club author Lenore Newman talks about food biodiversity.

What does the future look like for Long COVID patients? We talk to two healthcare professionals to learn more. Plus, rescuing giraffes from a silent extinction. And how our brains interpret a mime’s performance.

Intriguing results from the Large Hadron Collider have some theoretical physicists eyeing what might lie beyond the Standard Model. Then, some tips about how to be a beekeeper. And what if a change in diet could cattle produce less methane?

Why microaggressions are no small matter, and how discrimination can affect those who witness it. Plus, a look at effects of climate change on springtime—from allergy season to flower coloration. And investigating whether octopuses dream.

In a sea of misinformation, some scientists are debunking myths and providing straight-forward information on social media. Plus, how freeze-dried twigs and leaves from beneath Greenland’s ice cap provide a record of a warmer time. And a look at the science of rainbows.

From egg-laying to mammal-like placentas, there’s huge variety in how sharks and rays make babies. Plus, how a pandemic in the video game World Of Warcraft a decade ago foreshadowed our current pandemic. And research into why adults may find it hard to daydream.

Small amounts of all drugs are now legal in Oregon—but the state’s addiction and recovery community are still debating if it’s a good idea. Plus, we answer all the tooth questions you’ve never thought to ask. And choosing when to end a conversation is a perplexing psychological problem.

While power has been mostly restored, journalists report Texans are now facing water shortages, housing damage, and crop losses. Plus, a conversation with NASA’s first Senior Climate Advisor. And, in a study straight out of “Inception,” scientists find a way to communicate with lucid dreamers.

Anthony Fauci sheds light on vaccines, variants, and a return to normalcy. Plus, looking into an ancient mummy mystery. And why tech workers, like other industries before them, are asking if unions can help improve their jobs.

The Human Genome Project is 20 years old. What lessons have we learned from it? Plus, the CDC now recommends double-masking as a highly effective method at stopping coronavirus spread. And Science Friday’s Science Diction podcast launches its third season.